From cf6303a5bc1558ebdb7b467da38f74cd3ac3a9b1 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Mon, 5 Dec 2022 19:46:06 +0100
Subject: Add 2022

---
 2021/Cargo.toml        |    2 +
 2021/day1/Cargo.toml   |    8 +
 2021/day1/input.txt    | 2000 ++++++++++++++++++++++++++++++++++++++++++++++++
 2021/day1/src/main.rs  |   21 +
 2021/day10/Cargo.toml  |    8 +
 2021/day10/example.txt |   10 +
 2021/day10/input.txt   |  110 +++
 2021/day10/src/lib.rs  |  191 +++++
 2021/day2/Cargo.toml   |    8 +
 2021/day2/input.txt    | 1000 ++++++++++++++++++++++++
 2021/day2/src/main.rs  |   34 +
 2021/day3/Cargo.toml   |    8 +
 2021/day3/input.txt    | 1000 ++++++++++++++++++++++++
 2021/day3/src/main.rs  |   36 +
 2021/day4/Cargo.toml   |    8 +
 2021/day4/input.txt    |  601 +++++++++++++++
 2021/day4/src/main.rs  |  107 +++
 2021/day6/Cargo.toml   |    8 +
 2021/day6/input.txt    |    1 +
 2021/day6/src/main.rs  |   36 +
 2021/day7/Cargo.toml   |    8 +
 2021/day7/input.txt    |    1 +
 2021/day7/src/main.rs  |   29 +
 2021/day9/Cargo.toml   |    8 +
 2021/day9/example.txt  |    5 +
 2021/day9/input.txt    |  100 +++
 2021/day9/src/lib.rs   |   90 +++
 Cargo.toml             |    2 -
 day1/Cargo.toml        |    8 -
 day1/input.txt         | 2000 ------------------------------------------------
 day1/src/main.rs       |   21 -
 day10/Cargo.toml       |    8 -
 day10/example.txt      |   10 -
 day10/input.txt        |  110 ---
 day10/src/lib.rs       |  191 -----
 day2/Cargo.toml        |    8 -
 day2/input.txt         | 1000 ------------------------
 day2/src/main.rs       |   34 -
 day3/Cargo.toml        |    8 -
 day3/input.txt         | 1000 ------------------------
 day3/src/main.rs       |   36 -
 day4/Cargo.toml        |    8 -
 day4/input.txt         |  601 ---------------
 day4/src/main.rs       |  107 ---
 day6/Cargo.toml        |    8 -
 day6/input.txt         |    1 -
 day6/src/main.rs       |   36 -
 day7/Cargo.toml        |    8 -
 day7/input.txt         |    1 -
 day7/src/main.rs       |   29 -
 day9/Cargo.toml        |    8 -
 day9/example.txt       |    5 -
 day9/input.txt         |  100 ---
 day9/src/lib.rs        |   90 ---
 54 files changed, 5438 insertions(+), 5438 deletions(-)
 create mode 100644 2021/Cargo.toml
 create mode 100644 2021/day1/Cargo.toml
 create mode 100644 2021/day1/input.txt
 create mode 100644 2021/day1/src/main.rs
 create mode 100644 2021/day10/Cargo.toml
 create mode 100644 2021/day10/example.txt
 create mode 100644 2021/day10/input.txt
 create mode 100644 2021/day10/src/lib.rs
 create mode 100644 2021/day2/Cargo.toml
 create mode 100644 2021/day2/input.txt
 create mode 100644 2021/day2/src/main.rs
 create mode 100644 2021/day3/Cargo.toml
 create mode 100644 2021/day3/input.txt
 create mode 100644 2021/day3/src/main.rs
 create mode 100644 2021/day4/Cargo.toml
 create mode 100644 2021/day4/input.txt
 create mode 100644 2021/day4/src/main.rs
 create mode 100644 2021/day6/Cargo.toml
 create mode 100644 2021/day6/input.txt
 create mode 100644 2021/day6/src/main.rs
 create mode 100644 2021/day7/Cargo.toml
 create mode 100644 2021/day7/input.txt
 create mode 100644 2021/day7/src/main.rs
 create mode 100644 2021/day9/Cargo.toml
 create mode 100644 2021/day9/example.txt
 create mode 100644 2021/day9/input.txt
 create mode 100644 2021/day9/src/lib.rs
 delete mode 100644 Cargo.toml
 delete mode 100644 day1/Cargo.toml
 delete mode 100644 day1/input.txt
 delete mode 100644 day1/src/main.rs
 delete mode 100644 day10/Cargo.toml
 delete mode 100644 day10/example.txt
 delete mode 100644 day10/input.txt
 delete mode 100644 day10/src/lib.rs
 delete mode 100644 day2/Cargo.toml
 delete mode 100644 day2/input.txt
 delete mode 100644 day2/src/main.rs
 delete mode 100644 day3/Cargo.toml
 delete mode 100644 day3/input.txt
 delete mode 100644 day3/src/main.rs
 delete mode 100644 day4/Cargo.toml
 delete mode 100644 day4/input.txt
 delete mode 100644 day4/src/main.rs
 delete mode 100644 day6/Cargo.toml
 delete mode 100644 day6/input.txt
 delete mode 100644 day6/src/main.rs
 delete mode 100644 day7/Cargo.toml
 delete mode 100644 day7/input.txt
 delete mode 100644 day7/src/main.rs
 delete mode 100644 day9/Cargo.toml
 delete mode 100644 day9/example.txt
 delete mode 100644 day9/input.txt
 delete mode 100644 day9/src/lib.rs

diff --git a/2021/Cargo.toml b/2021/Cargo.toml
new file mode 100644
index 0000000..9f555f1
--- /dev/null
+++ b/2021/Cargo.toml
@@ -0,0 +1,2 @@
+[workspace]
+members = ["day1", "day2", "day3", "day4", "day6", "day7", "day9", "day10"]
diff --git a/2021/day1/Cargo.toml b/2021/day1/Cargo.toml
new file mode 100644
index 0000000..a3c4e52
--- /dev/null
+++ b/2021/day1/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day1/input.txt b/2021/day1/input.txt
new file mode 100644
index 0000000..ad1abff
--- /dev/null
+++ b/2021/day1/input.txt
@@ -0,0 +1,2000 @@
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diff --git a/2021/day1/src/main.rs b/2021/day1/src/main.rs
new file mode 100644
index 0000000..7e18b94
--- /dev/null
+++ b/2021/day1/src/main.rs
@@ -0,0 +1,21 @@
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::BufReader;
+
+fn main() {
+    let file = File::open("input.txt").expect("File not found");
+    let reader = BufReader::new(file);
+    let values: Vec<i32> = reader
+        .lines()
+        .map(|x| x.unwrap().parse::<i32>().unwrap())
+        .collect::<Vec<i32>>();
+    let mut increasing: u16 = 0;
+
+    for index in 1..values.len() {
+        if values[index - 1] < values[index] {
+            increasing += 1;
+        }
+    }
+
+    println!("{}", increasing);
+}
diff --git a/2021/day10/Cargo.toml b/2021/day10/Cargo.toml
new file mode 100644
index 0000000..40d2066
--- /dev/null
+++ b/2021/day10/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day10"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day10/example.txt b/2021/day10/example.txt
new file mode 100644
index 0000000..b1518d9
--- /dev/null
+++ b/2021/day10/example.txt
@@ -0,0 +1,10 @@
+[({(<(())[]>[[{[]{<()<>>
+[(()[<>])]({[<{<<[]>>(
+{([(<{}[<>[]}>{[]{[(<()>
+(((({<>}<{<{<>}{[]{[]{}
+[[<[([]))<([[{}[[()]]]
+[{[{({}]{}}([{[{{{}}([]
+{<[[]]>}<{[{[{[]{()[[[]
+[<(<(<(<{}))><([]([]()
+<{([([[(<>()){}]>(<<{{
+<{([{{}}[<[[[<>{}]]]>[]]
diff --git a/2021/day10/input.txt b/2021/day10/input.txt
new file mode 100644
index 0000000..df5a5a3
--- /dev/null
+++ b/2021/day10/input.txt
@@ -0,0 +1,110 @@
+{[[<{(<{[{{[{[[]{}]{<>{}}}({<>()}{{}{}})]}{({[<>{}]({}[])})[{[{}[]](()<>)}<[{}{}]{()<>}>]}}]<(({{{(){}}{[][]
+<<<({((<{<([([<>{}]<{}<>>]{<{}<>>({}<>)}])>}{({(([()[]]{[]()})({{}<>}<(){}>))[(<<><>>[()[]]){{()[]}<
+<<<[(({{(([[[[<><>][<><>]]]([[{}{}](<><>)][(<>[]){[]()}])])([[(<{}<>>(()[]))(<[][]>)]]{{<[[]{}]{<
+({({([{{[[[{(<(){}><[]{}>)}]]][(<<([()[]](()[]))>[[[{}[]]{[]<>}](<()>[()<>]]]>(<(({}<>){<>[]}){<[]()>}>{[{(
+[([{(<[<<[({<[()<>][{}]>({{}{}})}({[<>{}][()()]}[([][]){()[]}]))]>>]>)<<[((([[{{()()}(<>{})}[(<>(
+{[[{<[[[[([[{[()[]]<[]()>}<({}())<[]<>>>]({<{}[]>}<<{}<>>>)](([(<>{}){[][]}]<[(){}]({}{})>)[((()){[]})<{{}
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+([[(<({[[{[{<[<><>]({}())>}](<[[{}[]](<><>)]{{()<>}[{}]}>{((<><>]<()()>)([(){}]<()>)})}{[<{({}())<<><>>}[(()
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+[[[[[{({((([<[<>{}]<{}()>>[<{}[]>[[]{}]]]{{{()<>}<{}[]>>([()()]{{}()})})))}[{{[({<{}[]>}<[[]()]>)(
+{[[<[([{((<[<[{}[]][<><>]>({{}{}}[{}{}])]{{({}{}){{}[]}><[{}[]]([]())>}>[{<{()<>}([]())>}]))(<[([[()][[][]]
+[(({[((<{<{<<[[]<>]<{}[]>>>{[<[]{}>[[]{}]]{((){})<[]>}}}<<<{{}{}}<<>()>>{<<>[]>([]{})}>>>}{[{{{<[]()>(()<>)}<
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+[[{[{([<<<<([{[][]}{<>()}]([[]<>]<<>[]>))<{[<>()][<>{}]}[((){})]>><[[<{}<>>([]())]]>><<{{(()
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+{(([({{<(<<[(({}{})[()[]])<<{}{}>(()[])>](([()[]]<{}()>){{<><>}<[][]>})>((<{()()}[{}()]>[{<>()}
+<(({(([[<[{[{<{}>(())}{<{}[]>[<>[]]}]{<{()}><<()()>[{}{}]>}}]({<<<()[]>{()<>}>>}[[{(<>){[]}}((())
+{{<{<<(([[[{{[{}{}]{<>[]}}}{[<{}<>>[{}<>]]{{[][]}{[]]}}]({<([][])[<>]>{(()())<<><>>}}([([][]){{}()}]<{()[]}{[
+[<<<<<[{<{{({[[]()](<>())}{{[]{}}([][])})}(<<[{}{}]({}<>)>[<<>>{()}]>)>({[(<[][]>{{}[]})][[(()())<(){}>]{<()<
+{({<<([[(<(([(()[])]{{{}<>)((){})}))[([<(){}>[<>()]]{{<><>}})<({<>{}}(<>[]))>]>({[{([]()){(){
+<{[<(<{[(<<{(({}[])(<>()))}[{<[]<>><()[]>}<<{}{}>(<>{})>]>{{{<{}<>>[{}()]}}[<<()()}>(([]{})([]
+{<[(([{{{[(<<[{}()]>{(<>())[[]{}]}>){{[{{}[]}{()<>}]{(()<>)<<><>>}}}]}{(<[([[]][{}[]])]>)[[((<{}[]})[
+([[[({({{[<<[<[]<>><()>]>{([<><>])(<<><>><<>()>)}>[(([[][]]{()<>}>)([{(){}}({}<>)])]][(<<{{}{}}{()
+{([({[{{{[(<<<<><>>([][])>[<[]<>>[()<>]]>)[[(<()[]>)(<<>()>[()<>])]({<[][]>{[][]}}[<()()>[<>[]]])]](<<{<<><>
+<((({{<[[({[(([]<>)[[]<>])]{{<{}>{[]<>}}(([][])[()[]])}}{[{<()<>>[()[]]}{{[]<>}{[]()}}]}){([{{{}{}}[(
+{<<[[{[<(([[{([][])[<>()]}<{<><>}>](<<[][]>[[]{}]>[{<>}{{}<>}])]{<([()<>]<()[]>)(<[][]>(<>[]))>[{[[]<
+([{((<[<<([[[{<>()}(<>())]([(){}](<>[]))][[<[]>]]]<{<[{}[]][[][]]>}([<[]()><<>{}>]<{(){}}[{}{}]>)>)>({([
+([{(<<[<{<[[(<[][]>{<><>}){<<>()>}]{({()[]}<<>()>)}][{({(){}}[()()])<[<><>]<<>[]>>}]>}<<[({<
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+{({[[<(<{[[{<<[]()>[()()]>([<>{}]{<>[]))}<{([]())(()<>)}<<[]><[][]>>>][({<{}><[]()>})[<[()[]][()()]>{<{}<>>
+{({(((<{<[<(<({}<>)[()()]>{<[]{}><()<>>})[<({}<>)><(<>)<()()>>]>(<(([][])<()<>>)<<<><>>([])>>{(<[]{}>
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+[<<[(({<({{{[{[][]}{(){}}][<()()>]}((<{}{}>>[{{}[]}])}{<[(<>[])[(){}]](<<><>>({}<>))><(({}())
+[([{<{(([[[([{{}[]}<(){}>])]<{([[]()][[]<>])([{}{}]([][]))}>]({<<([][]){()<>}>>{([()<>]([])){{{}()}{[][]}
+{<({[<[(({{({<(){}><[][]>}[{<>()}({})])<[[{}]{<><>}]<<[]{}>([]{})>>}[(({[]<>})([(){}]<()[]>))]}))]><<(
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diff --git a/2021/day10/src/lib.rs b/2021/day10/src/lib.rs
new file mode 100644
index 0000000..6cf54ad
--- /dev/null
+++ b/2021/day10/src/lib.rs
@@ -0,0 +1,191 @@
+use std::collections::VecDeque;
+use std::str::FromStr;
+
+pub struct SyntaxLines {
+    lines: Vec<String>,
+}
+
+impl FromStr for SyntaxLines {
+    type Err = ();
+
+    fn from_str(input: &str) -> Result<Self, Self::Err> {
+        let lines: Vec<_> = input
+            .trim()
+            .split('\n')
+            .map(|x| x.to_owned())
+            .collect::<Vec<String>>();
+
+        Ok(SyntaxLines { lines })
+    }
+}
+
+impl SyntaxLines {
+    pub fn part1(&self) -> u32 {
+        let mut result: u32 = 0;
+
+        for line in &self.lines {
+            let mut qopen = VecDeque::new();
+            let mut panic_char = ' ';
+
+            for character in line.chars() {
+                match character {
+                    c if character == '('
+                        || character == '['
+                        || character == '{'
+                        || character == '<' =>
+                    {
+                        qopen.push_back(c);
+                    }
+                    c if character == ')'
+                        || character == ']'
+                        || character == '}'
+                        || character == '>' =>
+                    {
+                        match qopen.pop_back() {
+                            Some(bracket) => {
+                                let mut error = false;
+                                if c == ')' && bracket != '(' {
+                                    error = true;
+                                } else if c == ']' && bracket != '[' {
+                                    error = true;
+                                } else if c == '}' && bracket != '{' {
+                                    error = true;
+                                } else if c == '>' && bracket != '<' {
+                                    error = true;
+                                }
+
+                                if error {
+                                    panic_char = c;
+                                }
+                            }
+                            None => panic!("Wtf?"),
+                        };
+                    }
+                    _ => {}
+                };
+
+                if panic_char != ' ' {
+                    if panic_char == ')' {
+                        result += 3;
+                    } else if panic_char == ']' {
+                        result += 57;
+                    } else if panic_char == '}' {
+                        result += 1197;
+                    } else if panic_char == '>' {
+                        result += 25137;
+                    }
+                    break;
+                }
+            }
+        }
+
+        result
+    }
+
+    pub fn part2(&self) -> u64 {
+        let mut scores = Vec::<u64>::new();
+
+        for line in &self.lines {
+            let mut qopen = VecDeque::new();
+            let mut panic_char = ' ';
+            let mut result: u64 = 0;
+
+            for character in line.chars() {
+                match character {
+                    c if character == '('
+                        || character == '['
+                        || character == '{'
+                        || character == '<' =>
+                    {
+                        qopen.push_back(c);
+                    }
+                    c if character == ')'
+                        || character == ']'
+                        || character == '}'
+                        || character == '>' =>
+                    {
+                        match qopen.pop_back() {
+                            Some(bracket) => {
+                                let mut error = false;
+                                if c == ')' && bracket != '(' {
+                                    error = true;
+                                } else if c == ']' && bracket != '[' {
+                                    error = true;
+                                } else if c == '}' && bracket != '{' {
+                                    error = true;
+                                } else if c == '>' && bracket != '<' {
+                                    error = true;
+                                }
+
+                                if error {
+                                    panic_char = c;
+                                }
+                            }
+                            None => panic!("Wtf?"),
+                        };
+                    }
+                    _ => {}
+                };
+
+                if panic_char != ' ' {
+                    break;
+                }
+            }
+
+            if panic_char == ' ' {
+                while !qopen.is_empty() {
+                    let v = qopen.pop_back().unwrap();
+                    result *= 5;
+                    result += if v == '(' {
+                        1
+                    } else if v == '[' {
+                        2
+                    } else if v == '{' {
+                        3
+                    } else {
+                        4
+                    };
+                }
+                scores.push(result);
+            }
+        }
+
+        let middle = scores.len() / 2 as usize;
+        scores.sort();
+
+        scores[middle]
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_example() {
+        let input: SyntaxLines = include_str!("../example.txt").parse().unwrap();
+        let result = input.part1();
+        assert_eq!(result, 26397);
+    }
+
+    #[test]
+    fn test_example_part2() {
+        let input: SyntaxLines = include_str!("../example.txt").parse().unwrap();
+        let result = input.part2();
+        assert_eq!(result, 288957);
+    }
+
+    #[test]
+    fn test_puzzle_input() {
+        let input: SyntaxLines = include_str!("../input.txt").parse().unwrap();
+        let result = input.part1();
+        assert_eq!(result, 392367);
+    }
+
+    #[test]
+    fn test_puzzle_input_part2() {
+        let input: SyntaxLines = include_str!("../input.txt").parse().unwrap();
+        let result = input.part2();
+        assert_eq!(result, 2192104158);
+    }
+}
diff --git a/2021/day2/Cargo.toml b/2021/day2/Cargo.toml
new file mode 100644
index 0000000..8aa34bb
--- /dev/null
+++ b/2021/day2/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day2"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day2/input.txt b/2021/day2/input.txt
new file mode 100644
index 0000000..9e714f9
--- /dev/null
+++ b/2021/day2/input.txt
@@ -0,0 +1,1000 @@
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diff --git a/2021/day2/src/main.rs b/2021/day2/src/main.rs
new file mode 100644
index 0000000..e0153a3
--- /dev/null
+++ b/2021/day2/src/main.rs
@@ -0,0 +1,34 @@
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::BufReader;
+
+fn main() {
+    let file = File::open("input.txt").unwrap();
+    let reader = BufReader::new(&file);
+    let tokens: Vec<String> = reader.lines().map(|x| x.unwrap()).collect::<Vec<String>>();
+    let mut xpos: u32 = 0;
+    let mut ypos: u32 = 0;
+    let mut aim: u32 = 0;
+
+    for line in tokens {
+        let command: Vec<&str> = line.split(" ").collect();
+        let (action, value) = (command[0], command[1].parse::<u32>().unwrap());
+
+        match action {
+            "forward" => {
+                xpos += value;
+                ypos += aim * value;
+            }
+            "down" => {
+                // ypos += value;
+                aim += value;
+            }
+            "up" => {
+                // ypos -= value;
+                aim -= value;
+            }
+            _ => {}
+        }
+    }
+    println!("{}", ypos * xpos);
+}
diff --git a/2021/day3/Cargo.toml b/2021/day3/Cargo.toml
new file mode 100644
index 0000000..898e70d
--- /dev/null
+++ b/2021/day3/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day3"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day3/input.txt b/2021/day3/input.txt
new file mode 100644
index 0000000..b380427
--- /dev/null
+++ b/2021/day3/input.txt
@@ -0,0 +1,1000 @@
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diff --git a/2021/day3/src/main.rs b/2021/day3/src/main.rs
new file mode 100644
index 0000000..10c1f81
--- /dev/null
+++ b/2021/day3/src/main.rs
@@ -0,0 +1,36 @@
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::BufReader;
+
+fn main() -> Result<(), std::io::Error> {
+    let file = File::open("input.txt")?;
+    let reader = BufReader::new(&file);
+
+    let lines: Vec<_> = reader.lines().map(|x| x.unwrap()).collect::<Vec<String>>();
+    let mut bits: Vec<u32> = vec![0; lines[0].len()];
+    let half: u32 = (lines.len() / 2) as u32;
+    let mut gamma_string = String::new();
+    let mut epsilon_string = String::new();
+
+    for line in lines {
+        for (index, character) in line.chars().enumerate() {
+            bits[index] += character.to_digit(10).unwrap();
+        }
+    }
+
+    for bit in bits {
+        if bit >= half {
+            gamma_string.push('1');
+            epsilon_string.push('0');
+        } else {
+            gamma_string.push('0');
+            epsilon_string.push('1');
+        }
+    }
+    let gamma_rate = isize::from_str_radix(&gamma_string, 2).unwrap();
+    let epsilon_rate = isize::from_str_radix(&epsilon_string, 2).unwrap();
+
+    println!("{}", gamma_rate * epsilon_rate);
+
+    Ok(())
+}
diff --git a/2021/day4/Cargo.toml b/2021/day4/Cargo.toml
new file mode 100644
index 0000000..8842130
--- /dev/null
+++ b/2021/day4/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day4"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day4/input.txt b/2021/day4/input.txt
new file mode 100644
index 0000000..4c28ac7
--- /dev/null
+++ b/2021/day4/input.txt
@@ -0,0 +1,601 @@
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diff --git a/2021/day4/src/main.rs b/2021/day4/src/main.rs
new file mode 100644
index 0000000..4b2f9b3
--- /dev/null
+++ b/2021/day4/src/main.rs
@@ -0,0 +1,107 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+
+fn part1(grids: &Vec<Vec<u32>>, mut inputs: Vec<u32>) -> u32 {
+    let mut values = Vec::<u32>::new();
+
+    for _ in 0..4 {
+        values.push(inputs.remove(0));
+    }
+
+    let mut winner: i8 = -1;
+    for input in inputs {
+        if winner >= 0 {
+            break;
+        }
+        values.push(input);
+        for i in 0..grids.len() {
+            // Search by rows
+            for j in [0, 5, 10, 15, 20] {
+                let mut n = 0;
+                for k in 0..5 {
+                    let x = grids[i][j + k];
+                    if values.iter().any(|&i| i == x) {
+                        n += 1;
+                    }
+                }
+                if n == 5 {
+                    winner = i as i8;
+                }
+            }
+
+            // Search by cols
+            if winner < 0 {
+                for j in 0..5 {
+                    let mut n = 0;
+                    for k in [0, 5, 10, 15, 20] {
+                        let x = grids[i][j + k];
+                        if values.iter().any(|&i| i == x) {
+                            n += 1;
+                        }
+                    }
+                    if n == 5 {
+                        winner = i as i8;
+                    }
+                }
+            }
+
+            if winner >= 0 {
+                break;
+            }
+        }
+    }
+
+    let mut sum = 0;
+    for x in &grids[winner as usize] {
+        if values.iter().any(|&i| i == *x) {
+            continue;
+        }
+
+        sum += x;
+    }
+
+    sum * values.pop().unwrap()
+}
+
+fn main() -> std::io::Result<()> {
+    let file = File::open("input.txt")?;
+    let reader = BufReader::new(file);
+    let mut lines = reader.lines();
+
+    let inputs: Vec<_> = lines
+        .next()
+        .unwrap()
+        .unwrap()
+        .trim()
+        .split(',')
+        .map(|x| x.parse::<u32>().unwrap())
+        .collect::<Vec<u32>>();
+
+    let mut grids: Vec<Vec<u32>> = vec![];
+    let mut n: usize = 0;
+
+    lines.next(); // Ignore the first empty line
+    while let Some(line) = lines.next() {
+        let mut line = line.unwrap();
+        grids.push(Vec::with_capacity(5 * 5));
+
+        for _ in 0..5 {
+            grids[n].extend(
+                line.trim()
+                    .split(' ')
+                    .filter(|x| !x.is_empty())
+                    .map(|x| x.parse::<u32>().unwrap())
+                    .collect::<Vec<u32>>(),
+            );
+            line = match lines.next() {
+                Some(x) => x.unwrap(),
+                None => "".to_string(),
+            };
+        }
+        n += 1;
+    }
+
+    println!("{}", part1(&grids, inputs.clone()));
+
+    Ok(())
+}
diff --git a/2021/day6/Cargo.toml b/2021/day6/Cargo.toml
new file mode 100644
index 0000000..89d04ae
--- /dev/null
+++ b/2021/day6/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day6"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day6/input.txt b/2021/day6/input.txt
new file mode 100644
index 0000000..de918c7
--- /dev/null
+++ b/2021/day6/input.txt
@@ -0,0 +1 @@
+1,1,3,5,1,1,1,4,1,5,1,1,1,1,1,1,1,3,1,1,1,1,2,5,1,1,1,1,1,2,1,4,1,4,1,1,1,1,1,3,1,1,5,1,1,1,4,1,1,1,4,1,1,3,5,1,1,1,1,4,1,5,4,1,1,2,3,2,1,1,1,1,1,1,1,1,1,1,1,1,1,5,1,1,1,1,1,1,1,1,2,2,1,1,1,1,1,5,1,1,1,3,4,1,1,1,1,3,1,1,1,1,1,4,1,1,3,1,1,3,1,1,1,1,1,3,1,5,2,3,1,2,3,1,1,2,1,2,4,5,1,5,1,4,1,1,1,1,2,1,5,1,1,1,1,1,5,1,1,3,1,1,1,1,1,1,4,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,3,2,1,1,1,1,2,2,1,2,1,1,1,5,5,1,1,1,1,1,1,1,1,1,1,1,1,2,2,1,1,4,2,1,4,1,1,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,1,5,1,1,1,1,1,1,1,1,3,1,1,3,3,1,1,1,3,5,1,1,4,1,1,1,1,1,4,1,1,3,1,1,1,1,1,1,1,1,2,1,5,1,1,1,1,1,1,1,1,1,1,4,1,1,1,1
diff --git a/2021/day6/src/main.rs b/2021/day6/src/main.rs
new file mode 100644
index 0000000..46a148c
--- /dev/null
+++ b/2021/day6/src/main.rs
@@ -0,0 +1,36 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+
+fn main() -> std::io::Result<()> {
+    let file = File::open("input.txt")?;
+    let mut reader = BufReader::new(file);
+    let mut buffer = String::new();
+
+    reader.read_line(&mut buffer)?;
+
+    let mut lanternfishes: Vec<_> = buffer
+        .trim()
+        .split(',')
+        .map(|x| x.parse::<i16>().unwrap())
+        .collect::<Vec<i16>>();
+
+    for _ in 0..80 {
+        let mut n = 0;
+        for lanternfish in lanternfishes.iter_mut() {
+            if *lanternfish == 0 {
+                *lanternfish = 6;
+                n += 1;
+            } else {
+                *lanternfish -= 1;
+            }
+        }
+
+        for _ in 0..n {
+            lanternfishes.push(8);
+        }
+    }
+
+    println!("{}", lanternfishes.len());
+
+    Ok(())
+}
diff --git a/2021/day7/Cargo.toml b/2021/day7/Cargo.toml
new file mode 100644
index 0000000..b170ccb
--- /dev/null
+++ b/2021/day7/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day7"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day7/input.txt b/2021/day7/input.txt
new file mode 100644
index 0000000..3e0fecf
--- /dev/null
+++ b/2021/day7/input.txt
@@ -0,0 +1 @@
+1101,1,29,67,1102,0,1,65,1008,65,35,66,1005,66,28,1,67,65,20,4,0,1001,65,1,65,1106,0,8,99,35,67,101,99,105,32,110,39,101,115,116,32,112,97,115,32,117,110,101,32,105,110,116,99,111,100,101,32,112,114,111,103,114,97,109,10,62,461,1087,183,1096,431,412,200,486,1543,25,580,1030,15,65,1186,9,226,173,77,119,691,855,451,88,741,221,1465,190,779,327,179,627,366,288,174,1147,49,773,3,5,65,20,172,601,307,611,699,1168,933,1295,832,242,62,8,4,226,768,33,566,21,10,937,15,760,100,574,181,89,72,1054,225,28,0,685,661,131,281,933,90,233,109,1345,81,106,636,1262,193,172,1056,709,1176,447,536,1054,929,171,226,127,274,710,917,218,192,25,128,321,1816,515,181,759,20,258,134,281,151,99,479,623,534,72,576,534,337,54,293,450,230,963,14,357,446,1244,964,16,865,52,1,1171,77,7,275,313,894,577,305,1119,393,285,354,136,1147,241,441,166,1024,650,101,178,1514,186,902,367,5,431,374,56,507,857,1316,0,186,63,118,1062,62,446,266,47,354,168,65,1036,447,689,160,749,728,791,1066,99,675,194,891,153,737,801,254,905,1046,21,413,386,204,603,373,218,440,137,1340,1616,121,903,722,841,731,213,219,405,336,1345,144,329,285,213,272,717,47,126,1137,548,32,21,755,219,595,187,143,636,476,397,185,70,345,89,319,80,867,26,1166,509,24,16,151,605,1415,893,814,473,289,377,407,44,184,290,447,1669,116,319,455,294,145,513,58,247,186,1565,31,297,1,226,1051,1561,1233,254,1274,422,547,1638,354,1855,419,71,1003,626,519,109,96,996,117,32,226,424,184,181,720,1311,1162,11,86,438,408,1269,887,612,327,133,1117,1390,345,10,370,175,37,1154,659,707,193,665,65,359,758,1253,498,219,601,59,919,1371,289,9,437,392,626,981,2,51,733,780,101,541,770,464,28,616,81,1708,1515,719,780,1214,673,268,246,25,252,301,205,27,160,0,298,69,285,58,809,1369,812,628,353,47,632,123,168,135,277,303,614,365,330,1385,1117,1346,737,744,1403,385,215,437,276,726,673,668,494,164,1,763,696,487,252,375,1253,42,1111,963,58,63,11,1648,1080,964,526,454,1349,1098,95,59,78,36,42,654,1441,1129,464,740,355,370,44,4,154,986,439,828,287,969,765,565,836,196,387,556,34,586,438,1205,760,798,6,61,260,25,418,1628,566,3,530,753,758,16,92,30,1388,109,240,513,1048,1056,588,1634,418,297,195,447,1145,198,466,0,607,180,57,58,72,319,221,869,744,339,195,1295,268,1336,1310,38,714,326,393,445,422,102,389,188,147,21,805,381,520,561,282,438,115,431,156,482,50,890,470,22,60,46,1588,971,1219,82,380,1061,948,455,99,255,400,1832,91,225,280,520,279,91,172,92,946,434,182,164,142,83,91,281,538,962,77,1104,1522,310,4,961,62,9,1257,596,464,733,338,1166,334,380,509,773,90,498,480,1523,1632,530,543,413,589,748,4,861,11,233,192,699,33,615,1853,205,270,624,1132,1100,227,1402,349,183,179,645,4,1120,962,317,326,128,422,281,302,701,53,179,34,802,272,1254,375,764,418,16,160,943,479,416,717,644,1029,372,140,114,449,351,159,305,1299,749,488,502,180,210,17,533,258,120,333,1097,185,1911,451,360,66,1329,1260,209,1611,454,809,336,783,1438,20,26,609,720,155,578,367,231,1715,64,610,465,752,81,108,389,995,244,1291,1144,159,161,1630,561,813,261,67,1604,124,231,833,14,15,1245,1309,1165,103,1270,228,1,133,644,581,218,481,716,237,155,360,110,1408,931,99,216,5,21,67,348,927,325,759,1127,557,584,696,428,653,548,247,1519,1682,132,3,1648,230,229,136,253,543,1153,204,669,58,81,357,85,82,749,503,139,32,1170,1352,151,653,1441,51,392,474,2,114,64,418,125,514,838,473,794,331,13,327,1476,836,37,3,0,115,18,1784,300,190,99,997,1164,31,1255,96,64,1101,354,698,372,852,1508,100,289,32,704,292,504,191,1342,231,692,12,369,1182,62,809,566,688,218,2,539,234,996,444,228,456,369,115,23,29,226,940,95,404,349,1254,171,69,711,2,1405,1181,34,8,92,173,533,20,181,921,201,1236,185,457,526,2,106,12,601,58,339,457,590,15,1583,473,451,1124,1569,401,72,154,9,1331,471,165,516,463,543,298,197,43,1294,101,1058,1025,1099,4,634,90,104,870,480,412,290,11,924,338,30,281,83,268,20,848,1722,1060,987,9,196,266,28,402,267,199,814,986,440,906,796,1403,1394,62,136,442,412,1729,571,459,91,730,269,172,202,772,305
diff --git a/2021/day7/src/main.rs b/2021/day7/src/main.rs
new file mode 100644
index 0000000..26e1e30
--- /dev/null
+++ b/2021/day7/src/main.rs
@@ -0,0 +1,29 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+
+fn main() -> std::io::Result<()> {
+    let file = File::open("input.txt")?;
+    let mut reader = BufReader::new(file);
+    let mut buffer = String::new();
+    reader.read_line(&mut buffer)?;
+
+    let mut inputs: Vec<_> = buffer
+        .trim()
+        .split(',')
+        .map(|x| x.parse::<i16>().unwrap())
+        .collect::<Vec<i16>>();
+
+    inputs.sort();
+
+    let half: usize = inputs.len() / 2;
+    let middle = inputs[half];
+    let mut sum: u32 = 0;
+
+    for input in inputs {
+        sum += (input - middle).abs() as u32;
+    }
+
+    println!("{}", sum);
+
+    Ok(())
+}
diff --git a/2021/day9/Cargo.toml b/2021/day9/Cargo.toml
new file mode 100644
index 0000000..b5e5273
--- /dev/null
+++ b/2021/day9/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day9"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2021/day9/example.txt b/2021/day9/example.txt
new file mode 100644
index 0000000..6dee4a4
--- /dev/null
+++ b/2021/day9/example.txt
@@ -0,0 +1,5 @@
+2199943210
+3987894921
+9856789892
+8767896789
+9899965678
diff --git a/2021/day9/input.txt b/2021/day9/input.txt
new file mode 100644
index 0000000..10120f9
--- /dev/null
+++ b/2021/day9/input.txt
@@ -0,0 +1,100 @@
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diff --git a/2021/day9/src/lib.rs b/2021/day9/src/lib.rs
new file mode 100644
index 0000000..3391a74
--- /dev/null
+++ b/2021/day9/src/lib.rs
@@ -0,0 +1,90 @@
+use std::str::FromStr;
+
+#[derive(Debug)]
+struct Heightmap {
+    data: Vec<Vec<u8>>,
+    rows: usize,
+    cols: usize,
+}
+
+impl FromStr for Heightmap {
+    type Err = ();
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let rows: Vec<_> = s.trim().split('\n').collect::<Vec<&str>>();
+        let mut data: Vec<Vec<u8>> = vec![];
+        for row in &rows {
+            data.push(
+                row.chars()
+                    .map(|x| x.to_digit(10).unwrap() as u8)
+                    .collect::<Vec<u8>>(),
+            );
+        }
+        Ok(Heightmap {
+            data,
+            rows: rows.len(),
+            cols: rows[0].chars().count(),
+        })
+    }
+}
+
+impl Heightmap {
+    fn resolve(&self) -> usize {
+        let mut count: usize = 0;
+
+        for i in 0..self.rows {
+            for j in 0..self.cols {
+                let top = if i > 0 { self.data[i - 1][j] } else { 10 };
+
+                let bottom = if i < self.rows - 1 {
+                    self.data[i + 1][j]
+                } else {
+                    10
+                };
+
+                let left = if j > 0 { self.data[i][j - 1] } else { 10 };
+
+                let right = if j < self.cols - 1 {
+                    self.data[i][j + 1]
+                } else {
+                    10
+                };
+                let center = self.data[i][j];
+
+                if center < top && center < bottom && center < left && center < right {
+                    count += (center + 1) as usize;
+                }
+            }
+        }
+
+        count
+    }
+}
+
+pub fn part1(input: &str) -> usize {
+    let grid: Heightmap = input.parse().unwrap();
+    let result = grid.resolve();
+
+    result
+}
+
+#[cfg(test)]
+mod day9_test {
+    use super::*;
+
+    #[test]
+    fn test_with_example_data() {
+        let data = include_str!("../example.txt");
+        let result = part1(data);
+
+        assert_eq!(result, 15);
+    }
+
+    #[test]
+    fn test_puzzle_input_part1() {
+        let data = include_str!("../input.txt");
+        let result = part1(data);
+
+        assert_eq!(result, 541);
+    }
+}
diff --git a/Cargo.toml b/Cargo.toml
deleted file mode 100644
index 9f555f1..0000000
--- a/Cargo.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[workspace]
-members = ["day1", "day2", "day3", "day4", "day6", "day7", "day9", "day10"]
diff --git a/day1/Cargo.toml b/day1/Cargo.toml
deleted file mode 100644
index a3c4e52..0000000
--- a/day1/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day1"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day1/input.txt b/day1/input.txt
deleted file mode 100644
index ad1abff..0000000
--- a/day1/input.txt
+++ /dev/null
@@ -1,2000 +0,0 @@
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diff --git a/day1/src/main.rs b/day1/src/main.rs
deleted file mode 100644
index 7e18b94..0000000
--- a/day1/src/main.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-use std::fs::File;
-use std::io::prelude::*;
-use std::io::BufReader;
-
-fn main() {
-    let file = File::open("input.txt").expect("File not found");
-    let reader = BufReader::new(file);
-    let values: Vec<i32> = reader
-        .lines()
-        .map(|x| x.unwrap().parse::<i32>().unwrap())
-        .collect::<Vec<i32>>();
-    let mut increasing: u16 = 0;
-
-    for index in 1..values.len() {
-        if values[index - 1] < values[index] {
-            increasing += 1;
-        }
-    }
-
-    println!("{}", increasing);
-}
diff --git a/day10/Cargo.toml b/day10/Cargo.toml
deleted file mode 100644
index 40d2066..0000000
--- a/day10/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day10"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day10/example.txt b/day10/example.txt
deleted file mode 100644
index b1518d9..0000000
--- a/day10/example.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-[({(<(())[]>[[{[]{<()<>>
-[(()[<>])]({[<{<<[]>>(
-{([(<{}[<>[]}>{[]{[(<()>
-(((({<>}<{<{<>}{[]{[]{}
-[[<[([]))<([[{}[[()]]]
-[{[{({}]{}}([{[{{{}}([]
-{<[[]]>}<{[{[{[]{()[[[]
-[<(<(<(<{}))><([]([]()
-<{([([[(<>()){}]>(<<{{
-<{([{{}}[<[[[<>{}]]]>[]]
diff --git a/day10/input.txt b/day10/input.txt
deleted file mode 100644
index df5a5a3..0000000
--- a/day10/input.txt
+++ /dev/null
@@ -1,110 +0,0 @@
-{[[<{(<{[{{[{[[]{}]{<>{}}}({<>()}{{}{}})]}{({[<>{}]({}[])})[{[{}[]](()<>)}<[{}{}]{()<>}>]}}]<(({{{(){}}{[][]
-<<<({((<{<([([<>{}]<{}<>>]{<{}<>>({}<>)}])>}{({(([()[]]{[]()})({{}<>}<(){}>))[(<<><>>[()[]]){{()[]}<
-<<<[(({{(([[[[<><>][<><>]]]([[{}{}](<><>)][(<>[]){[]()}])])([[(<{}<>>(()[]))(<[][]>)]]{{<[[]{}]{<
-({({([{{[[[{(<(){}><[]{}>)}]]][(<<([()[]](()[]))>[[[{}[]]{[]<>}](<()>[()<>]]]>(<(({}<>){<>[]}){<[]()>}>{[{(
-[([{(<[<<[({<[()<>][{}]>({{}{}})}({[<>{}][()()]}[([][]){()[]}]))]>>]>)<<[((([[{{()()}(<>{})}[(<>(
-{[[{<[[[[([[{[()[]]<[]()>}<({}())<[]<>>>]({<{}[]>}<<{}<>>>)](([(<>{}){[][]}]<[(){}]({}{})>)[((()){[]})<{{}
-{{<<((({(<[({<<>[]><{}{}>}((<>[])([]())))[((()[]){[]{}})]]{<([{}[]]<<>[]>)(({}[]}{[][]})><<([][])([][])>>}
-([[(<({[[{[{<[<><>]({}())>}](<[[{}[]](<><>)]{{()<>}[{}]}>{((<><>]<()()>)([(){}]<()>)})}{[<{({}())<<><>>}[(()
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-(<({{<(<{[{<{[(){}][<>{}]}{[[][]]{<>{}}}>}<(([[][]][<>()])[[{}{}][{}()]])>]}>{{{([<(()())>
-(<[{<<(<<<((<[<>[]]>)({[[]<>]}<({}<>)([][])>))[{<[[]()](<>())>{<[]<>><{}()>}}(<<{}<>>(<>[]
-<[[(((([[(<[{((){})<{}<>>}{({}<>><{}<>>}]([{<>()}([]<>)]<{()()}({}[])>)>)]{{({([{}<>])(<<>()
-<({<(<{[{<<[[[{}[]][()[]]](<()()><()>)]>>[(((([]<>){(){}})<{{}()}({}())>)[<[[]()]{<>[]}><[()[]][<>()]>])[(<<<
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-<({<<(<{(<<(({[]<>}{{}{}})(<<>[]><<>[]>))(<<<><>><[]{}>>{[()[]][()[]]})>>){{<{([{}()]{<>()}){<[][]>({}<>)}}
-(([{{(<[([([([[]()]({}))<<[][]><{}()>>][[[{}<>][<>{}]]]){[{[[][]]<{}{}>}<<()<>>(<>())>]}])<{{[(({})<[]()>){[<
-{(<<[<{<<{(([[()<>]{<>[]}]{[{}{}]{<>()}})<([[][]]{[]<>}){(()<>)<[]<>>}>)[[{{[]}}]]}<{{((<>)<{}>){
-<{<{<{{[<{{<<<<>[]>{()[]}>><[<<>()>{{}[]}]<[{}]{[]()}>>}}>[[{(((<>{}]({}()))<<{}()>[[]()]>)}]{{({[<>()
-<[[<<([{([{{[[()()]<{}<>>][{{}()}<()()>]}({([]<>)<<>[]>}{[[][]][()[]]})}[((<{}{}><()[]>){<<>()>((){}
-<<{([[{[<{[<([()()]{()<>}>[<[]<>>[[]<>]]>{{[{}{}][()<>]}<[[]{}][{}{}]>}]<((({}<>)<<><>>){{<><>}[()<>]})>
-[[[[[{({((([<[<>{}]<{}()>>[<{}[]>[[]{}]]]{{{()<>}<{}[]>>([()()]{{}()})})))}[{{[({<{}[]>}<[[]()]>)(
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-[(({[((<{<{<<[[]<>]<{}[]>>>{[<[]{}>[[]{}]]{((){})<[]>}}}<<<{{}{}}<<>()>>{<<>[]>([]{})}>>>}{[{{{<[]()>(()<>)}<
-{[[[{<([{[<{([<>()]{<>[])){<<><>>([]<>)}}<{[(){}]<()<>>}>>([[<()<>>((){})]][<<[]{}><()()>>(<[
-[{(<{[({[{[{{(<>{})({}{})}<(<>[])>}([<()<>>[()<>]]{(()<>)<{}()>})]{([{{}{}}(()<>)][{()()>])[<<[][]>(<>[])>
-[[{[{([<<<<([{[][]}{<>()}]([[]<>]<<>[]>))<{[<>()][<>{}]}[((){})]>><[[<{}<>>([]())]]>><<{{(()
-<{[<<[[[<{{[<<[]{}>[()<>]><{()()}<()[]>>][[[<>{}][[]()]][<<>>{{}[]}]]}{<<<[]()>({}<>)>>(<[[]()]{<>[]}
-{(([({{<(<<[(({}{})[()[]])<<{}{}>(()[])>](([()[]]<{}()>){{<><>}<[][]>})>((<{()()}[{}()]>[{<>()}
-<(({(([[<[{[{<{}>(())}{<{}[]>[<>[]]}]{<{()}><<()()>[{}{}]>}}]({<<<()[]>{()<>}>>}[[{(<>){[]}}((())
-{{<{<<(([[[{{[{}{}]{<>[]}}}{[<{}<>>[{}<>]]{{[][]}{[]]}}]({<([][])[<>]>{(()())<<><>>}}([([][]){{}()}]<{()[]}{[
-[<<<<<[{<{{({[[]()](<>())}{{[]{}}([][])})}(<<[{}{}]({}<>)>[<<>>{()}]>)>({[(<[][]>{{}[]})][[(()())<(){}>]{<()<
-{({<<([[(<(([(()[])]{{{}<>)((){})}))[([<(){}>[<>()]]{{<><>}})<({<>{}}(<>[]))>]>({[{([]()){(){
-<{[<(<{[(<<{(({}[])(<>()))}[{<[]<>><()[]>}<<{}{}>(<>{})>]>{{{<{}<>>[{}()]}}[<<()()}>(([]{})([]
-{<[(([{{{[(<<[{}()]>{(<>())[[]{}]}>){{[{{}[]}{()<>}]{(()<>)<<><>>}}}]}{(<[([[]][{}[]])]>)[[((<{}[]})[
-([[[({({{[<<[<[]<>><()>]>{([<><>])(<<><>><<>()>)}>[(([[][]]{()<>}>)([{(){}}({}<>)])]][(<<{{}{}}{()
-{([({[{{{[(<<<<><>>([][])>[<[]<>>[()<>]]>)[[(<()[]>)(<<>()>[()<>])]({<[][]>{[][]}}[<()()>[<>[]]])]](<<{<<><>
-<((({{<[[({[(([]<>)[[]<>])]{{<{}>{[]<>}}(([][])[()[]])}}{[{<()<>>[()[]]}{{[]<>}{[]()}}]}){([{{{}{}}[(
-{<<[[{[<(([[{([][])[<>()]}<{<><>}>](<<[][]>[[]{}]>[{<>}{{}<>}])]{<([()<>]<()[]>)(<[][]>(<>[]))>[{[[]<
-([{((<[<<([[[{<>()}(<>())]([(){}](<>[]))][[<[]>]]]<{<[{}[]][[][]]>}([<[]()><<>{}>]<{(){}}[{}{}]>)>)>({([
-([{(<<[<{<[[(<[][]>{<><>}){<<>()>}]{({()[]}<<>()>)}][{({(){}}[()()])<[<><>]<<>[]>>}]>}<<[({<
-{<({[({{<[[({{(){}}<<>[]>}<({}[]){()())>)<{([]{})([]())}>]]>(<{[((<>[]){[]()})<<()<>>({}<>)>]{{{()[]}}}
-{({[[<(<{[[{<<[]()>[()()]>([<>{}]{<>[]))}<{([]())(()<>)}<<[]><[][]>>>][({<{}><[]()>})[<[()[]][()()]>{<{}<>>
-{({(((<{<[<(<({}<>)[()()]>{<[]{}><()<>>})[<({}<>)><(<>)<()()>>]>(<(([][])<()<>>)<<<><>>([])>>{(<[]{}>
-[{{[([<<(<[<({<><>}{[]()})[{<><>}]>{<(()[])><[<><>]>}][<{[{}<>][[]<>]}(([]{}))>[[([])<{}[]>]{<(){}>({}())}]]
-{[<<((<<[([[([()[]]({}()))(<{}()>{(){}})][((<>[]]{{}{}})((()<>)<<><>>)]]{[<(<>[])<[]>>([<>()]{[]
-((({({{<[(((<[<>[]]([]<>)>[<[]{}>{<><>}])<{[<>()][()<>]}{<{}<>>[[]()]}>))<[<{(<><>)<()<>>}>[<[[]<>]<[]{
-{<<<{<({([({((<><>)[[][]]){[()<>]{<><>}}}<[{[]<>}[<>[]]][[()<>]{(){}}]>)<[[[[]<>]]((<><>))}(<<()<>><<><>>><[[
-(({{[({<{<{[[<<>[]>([][])]{<<>()>{{}()>}]{[<<>[]>[{}{}]][{()()}{[]<>}]}}([({{}[]}{{}()}){(()<>){()<>}}
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-<([<[{{({[(({({}{})<{}()>}))[[((<><>)<{}>)[[[][]]((){})]]<<<[]()>{()[]}>>]]{<<(<[]<>>[<>{}]){({}())}>>}}{[[
-[<<[(({<({{{[{[][]}{(){}}][<()()>]}((<{}{}>>[{{}[]}])}{<[(<>[])[(){}]](<<><>>({}<>))><(({}())
-[([{<{(([[[([{{}[]}<(){}>])]<{([[]()][[]<>])([{}{}]([][]))}>]({<<([][]){()<>}>>{([()<>]([])){{{}()}{[][]}
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-<<[[<(({{{{<{{[]()}({}<>)}[(<>{}){[]{}}]>[<{[][]}{{}{}}>]}{{(<<>()><{}{}>)[{{}[])[(){}]]}(([()[]][{}[]]){<
-(<(<<<([{((<[[{}[]]{{}}]<({}<>)<()<>>>})<(<[<>{}]<{}<>>><([]<>)([]<>)>)[{<{}<>>[()()]}[(<>[])]
-<{(([([[<<([{{<><>}[<><>}}{[{}<>]{{}<>}}]{([[]()]<()[]>)[({}<>){[][]}]})({[((){})<<>[]>][{<>()}[[]<>]
-<<<{{<{[({<<[[[]][[][]]]({[]()}{{}[]})>>{[({{}<>}{[][]})[[{}()]{[]}]]}}([[[[<>[]]<{}[]>]{[{}{
-{<{{([([<{[[{([]<>)[()<>]}][{<()()>}<{{}<>}([]{})>]]{{[{[][]}<{}[]>]([<>()]{{}{}})}{(({}{})((
-<{<((<{<{([<((()<>){()[]}){[[]<>](()[])}><(([]()])<[[]()]{{}<>}>>]{({<()><()()>}[[()<>]<<>[]>]
-[<[{[(<<[(<<<(<>[])[[]]>{<(){}>}><([<>[]]{<>{}})[{<><>}{[]()}]>>{[(<[]<>>)<[{}<>]{<>()}>]{<(()())[[][]]>[
-[<<<{[(<<[({{{<>[]}<[]()>}{<<>[]>(<>[]]}})]>>{[[<({([][]){{}()}}[{<>()}({}())])({(()[])(<>
-[<[[<{<{{{{{<([]())[<>()]><{()<>}[<><>]>}}}}}><<{(([{<[][]>{[]()}}[{[][]}{{}<>}>][(({}())({}())
-<[[{{[<{<<[<(<<>[]>)<<()()>{{}[]}>>{<{()<>}[<><>]>[{{}{}}{()}]}]{(<([]<>)({}())>{<[]{}>}){[({}())]{(
-({{[(([(<{[[{(()<>)({}())}<({}{}){{}}>](((()())<{}()>)[<{}<>><{}()>])]({{([][])({}<>)}<({}())<[]
-{[(<[<{[(([<(<[]()><{}()>)<<[][]><()>>>][<<[{}[]]<{}{}>](<<>>{<>[]})>[{(<>())[<>]}<{[]<>}((
-[{{(<{{[{<<<<(<><>)>(({}[]))><<[[]{}][<>()]>>>({[({}{}){<>{}}]<[<><>]>})>}<[<{{<{}{}>{<><>}}}>]<(
-{<{<<{[{<[[[<<{}[]>{()<>}>(<()[]>({}<>))]{<((){})[<><>]><{<>{}}{<>()}>}]({([()[]]{[]()})}([{()()}}<(<>()
-[<<([(<[<[[([(<>{}){()<>}][<{}()><{}()>])]((([()<>]{()<>})[[<><>]]))][{([{{}{}}]<{<>}[{}()]>)[[{
-<[[{([({<<<(<([]<>)<<><>>>[{[]()}<(){}>])>>>({(([[<>{}]([]<>)]{[(){}](()())})([{<>()}([]<>)]))<[{[{}()]{<>[]}
-<(([{<{[[<({[({}()){{}[]}]{<{}[]>[{}<>]}}[[[{}<>](<><>)][<()()>({}<>)]])<{{[{}<>]{<>[]}}}([[{}[]]<<>{}>])>>
-{(<[([[[{[<[[<[]()>[{}{}]][<()[]>{[]()}]]>[[[(<>[]){<>[]}][{<>{}}<()[]>]]]](<{{([]())[()()]]<[{}[]][[](
-[([[[<<<{({[[{[][]}<()[]>]][{{[]()}([]<>)}({()<>})]))[<{<[<>{}]{[]{}}>({<>{}}[()()])}><<([<>[]]{{}[]})[<[][]
-{(({({<{([[[[<[]{}>(<>{})]{({}())(()<>)}]]<{{<[]()>(()())}{([][])}}<{[[][]]<()<>>}{(<>{})({}
-[{{<[{(<{({<[{[]<>}[[]()]][[{}<>]{{}()}]>(<[()()]>([{}[]]{(){}}))}{{{({}<>)<<><>>}({[]<>)<{}>)}})([<({
-(<[{{{{<(<[<{{()()}{[]{}}}<([]{}){<>()}>>[({{}<>}{{}[]})]][[({{}()}(<>[])){<[][]>[<>()]}]]>]>{[(
-[{<(<<{[<(<[<({}[])({}{})>]{<{{}()}<<><>>>{<{}{}>(()())}}>)>][({<[[<(){}>(<>())](({}{}){{}()}
-{([[{<{<{(([<([]<>)[<>]>{(<>[]){<>[]}}][<[(){}]{{}()}>((<>[]))])<({[()<>](()[])}){<[()<>]{<>{}}>{([])<()
-<[{[{(<<({[((<[]{}>{[]{}})([()[]]<(){}>))<{<<>[]>[{}]}{<{}<>>{()}}>]{{{(<>())}(({}<>))}<<{()<>}({}())>([{}<
-<(<[{{<{{[([{{(){}}<<>{}>}(<(){}>)][[{{}<>}(()<>)]]){([<<>{}>[()()]][{[]()}<{}()>])}]<{([{[]}([][]
-<[[{<{[<{([<[<[]<>][{}]]<({}{})([])>>]({{(<><>)[[]<>]}<<{}[]>[[]<>]>}))}([<(({()()}{[]<>}))<{<()[]><[]()>}(((
-({{{<{([{<[{{[{}<>](<><>)}[[<>()]({}[])]}[[<(){}>({}<>)]<(()())({}())>])>[<<<[[][]][(){}]><([
-((<{[<[[(((<[<<>()>([]())]<(()<>){()[]}>>[<{(){}}{{}}>[[(){}}<[]{}>]])<[[[[][]][{}()]]{[{}()][
-(({[[<{({[[[[[<><>]<[]{}>]<(<>{}){[]()}>][(([]<>){()[]})([<>{}]<()<>>)]]]}[[<{<(<><>)<{}[]>>}<<{<>
-<{({[{(([[{(<(()[])<(){}>>{<{}{}>{<><>}})[<(()())<[]{}>>]}[{{{[]}[()[]]}[<()[]><<>{}>]}{<[<><>]{[]
-[<[<<{<{{<[(<{(){}}[<>()]><({}<>)<<>{}>))<<<()<>>({}<>)><[<><>][()]>>](({({}()){()()}}<[[]<>]<<>{}>>)<[[[]
-{<{(<(<[<([{<{{}[]}(()[])>[({}())<[][]>]}<<{()()}[<><>]>>]<{{[[]{}]{<><>}}(({}{})[[]])}({(<>[])<<>{}>
-{{{[[((<[(<<[[{}()]<[]<>>]{<()[]>}>[<<()()>>([<><>]((){}))]>{<<[{}{}][{}()]>[(()())[<>[]]]>{{
-<({<{[{<[<({{[<><>]{<>[]}}<{[]<>}<<><>>]}{{[{}{}]{{}{}}}{<[]<>>{[][]}}})(<({()<>}<{}[]>){([]{})
-{<(<<[<{([{[({{}<>}[()()]){(()<>)[{}<>]}]}])}>]{{(<[<<((()())<<>()>)>{([[]{}]((){}))<({}<>)({}<
-[<(<[[{{[([[<<[]{}>{[]<>}>{(<>[])[{}{}]>]([[[]<>](()())])])([[<{<>{}}(<><>)><({}<>)<()>>][({[]<>}
-[<{({{[<([{<{[()[]][(){}]}>[([<>[]]{{}})]}<<((()<>}(()()))<[(){}]>>((({}())[{}<>]){({}<>)<<>[]>})>]{<<{<{}[]
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-{<(([<<[<{(((<()<>>{{}()})({[]{}}[[]{}]))(([{}[]]{[]<>})<<[]>(<>{})>))}[{{<(<><>]<<>>>}}({[({}[])
-[[{{[([<[({[{(<>()}[<>[]]}{{<>{}}<[]{}>}]{{{()[]}([]{})}([()<>]{()<>})}}[<{(<>)<<><>>}{{<>[]}<<>[]>}>({<
-{{[{{{<([<{<{<{}<>>}{[(){}]{{}()}}><{{[]()}<{}>}>)[[{[{}{}]{()<>}}<(<>{}){[]{}}>][[(()<>)(<>())]({[]<>}[()[]
-((<({<{[(<[{[<<>><{}()>][[{}[]>]}{({()<>}[{}[]])[(()())]}][<<{<>{}}<<><>>>[{[][]}{<>()}]>]>[<({({}()){{
-[([<<({({[<{(((){}){<>{}})(({}<>))}{<[[]()][{}{}]>{([][])<[][]>}}>]<<(<{<>()}[()[]]>[<(){}>[<>()>])<<[{}(
diff --git a/day10/src/lib.rs b/day10/src/lib.rs
deleted file mode 100644
index 6cf54ad..0000000
--- a/day10/src/lib.rs
+++ /dev/null
@@ -1,191 +0,0 @@
-use std::collections::VecDeque;
-use std::str::FromStr;
-
-pub struct SyntaxLines {
-    lines: Vec<String>,
-}
-
-impl FromStr for SyntaxLines {
-    type Err = ();
-
-    fn from_str(input: &str) -> Result<Self, Self::Err> {
-        let lines: Vec<_> = input
-            .trim()
-            .split('\n')
-            .map(|x| x.to_owned())
-            .collect::<Vec<String>>();
-
-        Ok(SyntaxLines { lines })
-    }
-}
-
-impl SyntaxLines {
-    pub fn part1(&self) -> u32 {
-        let mut result: u32 = 0;
-
-        for line in &self.lines {
-            let mut qopen = VecDeque::new();
-            let mut panic_char = ' ';
-
-            for character in line.chars() {
-                match character {
-                    c if character == '('
-                        || character == '['
-                        || character == '{'
-                        || character == '<' =>
-                    {
-                        qopen.push_back(c);
-                    }
-                    c if character == ')'
-                        || character == ']'
-                        || character == '}'
-                        || character == '>' =>
-                    {
-                        match qopen.pop_back() {
-                            Some(bracket) => {
-                                let mut error = false;
-                                if c == ')' && bracket != '(' {
-                                    error = true;
-                                } else if c == ']' && bracket != '[' {
-                                    error = true;
-                                } else if c == '}' && bracket != '{' {
-                                    error = true;
-                                } else if c == '>' && bracket != '<' {
-                                    error = true;
-                                }
-
-                                if error {
-                                    panic_char = c;
-                                }
-                            }
-                            None => panic!("Wtf?"),
-                        };
-                    }
-                    _ => {}
-                };
-
-                if panic_char != ' ' {
-                    if panic_char == ')' {
-                        result += 3;
-                    } else if panic_char == ']' {
-                        result += 57;
-                    } else if panic_char == '}' {
-                        result += 1197;
-                    } else if panic_char == '>' {
-                        result += 25137;
-                    }
-                    break;
-                }
-            }
-        }
-
-        result
-    }
-
-    pub fn part2(&self) -> u64 {
-        let mut scores = Vec::<u64>::new();
-
-        for line in &self.lines {
-            let mut qopen = VecDeque::new();
-            let mut panic_char = ' ';
-            let mut result: u64 = 0;
-
-            for character in line.chars() {
-                match character {
-                    c if character == '('
-                        || character == '['
-                        || character == '{'
-                        || character == '<' =>
-                    {
-                        qopen.push_back(c);
-                    }
-                    c if character == ')'
-                        || character == ']'
-                        || character == '}'
-                        || character == '>' =>
-                    {
-                        match qopen.pop_back() {
-                            Some(bracket) => {
-                                let mut error = false;
-                                if c == ')' && bracket != '(' {
-                                    error = true;
-                                } else if c == ']' && bracket != '[' {
-                                    error = true;
-                                } else if c == '}' && bracket != '{' {
-                                    error = true;
-                                } else if c == '>' && bracket != '<' {
-                                    error = true;
-                                }
-
-                                if error {
-                                    panic_char = c;
-                                }
-                            }
-                            None => panic!("Wtf?"),
-                        };
-                    }
-                    _ => {}
-                };
-
-                if panic_char != ' ' {
-                    break;
-                }
-            }
-
-            if panic_char == ' ' {
-                while !qopen.is_empty() {
-                    let v = qopen.pop_back().unwrap();
-                    result *= 5;
-                    result += if v == '(' {
-                        1
-                    } else if v == '[' {
-                        2
-                    } else if v == '{' {
-                        3
-                    } else {
-                        4
-                    };
-                }
-                scores.push(result);
-            }
-        }
-
-        let middle = scores.len() / 2 as usize;
-        scores.sort();
-
-        scores[middle]
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_example() {
-        let input: SyntaxLines = include_str!("../example.txt").parse().unwrap();
-        let result = input.part1();
-        assert_eq!(result, 26397);
-    }
-
-    #[test]
-    fn test_example_part2() {
-        let input: SyntaxLines = include_str!("../example.txt").parse().unwrap();
-        let result = input.part2();
-        assert_eq!(result, 288957);
-    }
-
-    #[test]
-    fn test_puzzle_input() {
-        let input: SyntaxLines = include_str!("../input.txt").parse().unwrap();
-        let result = input.part1();
-        assert_eq!(result, 392367);
-    }
-
-    #[test]
-    fn test_puzzle_input_part2() {
-        let input: SyntaxLines = include_str!("../input.txt").parse().unwrap();
-        let result = input.part2();
-        assert_eq!(result, 2192104158);
-    }
-}
diff --git a/day2/Cargo.toml b/day2/Cargo.toml
deleted file mode 100644
index 8aa34bb..0000000
--- a/day2/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day2"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day2/input.txt b/day2/input.txt
deleted file mode 100644
index 9e714f9..0000000
--- a/day2/input.txt
+++ /dev/null
@@ -1,1000 +0,0 @@
-forward 2
-down 8
-down 1
-up 7
-forward 4
-down 4
-down 3
-forward 2
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-forward 2
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-up 9
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-forward 1
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-down 4
-up 3
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-down 2
-up 3
-up 5
-down 1
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-up 8
-up 2
-down 3
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diff --git a/day2/src/main.rs b/day2/src/main.rs
deleted file mode 100644
index e0153a3..0000000
--- a/day2/src/main.rs
+++ /dev/null
@@ -1,34 +0,0 @@
-use std::fs::File;
-use std::io::prelude::*;
-use std::io::BufReader;
-
-fn main() {
-    let file = File::open("input.txt").unwrap();
-    let reader = BufReader::new(&file);
-    let tokens: Vec<String> = reader.lines().map(|x| x.unwrap()).collect::<Vec<String>>();
-    let mut xpos: u32 = 0;
-    let mut ypos: u32 = 0;
-    let mut aim: u32 = 0;
-
-    for line in tokens {
-        let command: Vec<&str> = line.split(" ").collect();
-        let (action, value) = (command[0], command[1].parse::<u32>().unwrap());
-
-        match action {
-            "forward" => {
-                xpos += value;
-                ypos += aim * value;
-            }
-            "down" => {
-                // ypos += value;
-                aim += value;
-            }
-            "up" => {
-                // ypos -= value;
-                aim -= value;
-            }
-            _ => {}
-        }
-    }
-    println!("{}", ypos * xpos);
-}
diff --git a/day3/Cargo.toml b/day3/Cargo.toml
deleted file mode 100644
index 898e70d..0000000
--- a/day3/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day3"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day3/input.txt b/day3/input.txt
deleted file mode 100644
index b380427..0000000
--- a/day3/input.txt
+++ /dev/null
@@ -1,1000 +0,0 @@
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-011011101110
-011010100111
-001010000010
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-110001000000
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-001101110011
-110001110101
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-010101011110
-000011111000
-000100001000
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-010111001000
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-000101101011
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-111001011110
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-111100111100
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-100011101111
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-001011001100
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-110111011000
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-010000000100
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-000000111110
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-100100111110
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-111000000100
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-110110111111
-101110110010
-000110100000
-110100001101
-000111101110
-111000111001
-000111111010
-010110111011
-000101110111
-111000011011
-010110001010
-001011111011
-100100100011
-011110110010
-000111110101
-110110011101
-000011000011
-110011001010
-000100101100
-101100100011
-010111000001
-110101100001
-011110111010
-111100101000
-010000100010
-110011000111
-010011011100
-100110101011
-000100001011
-101111000010
-010000010000
-111110000100
-111100011110
-010100111001
-100000011111
-010111110100
-100100110011
-111101111001
-100010011000
-111110101111
-010111001010
-110000101000
-001111111111
-000111100110
-000011101100
-011010001000
-001011010011
-110011111011
diff --git a/day3/src/main.rs b/day3/src/main.rs
deleted file mode 100644
index 10c1f81..0000000
--- a/day3/src/main.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-use std::fs::File;
-use std::io::prelude::*;
-use std::io::BufReader;
-
-fn main() -> Result<(), std::io::Error> {
-    let file = File::open("input.txt")?;
-    let reader = BufReader::new(&file);
-
-    let lines: Vec<_> = reader.lines().map(|x| x.unwrap()).collect::<Vec<String>>();
-    let mut bits: Vec<u32> = vec![0; lines[0].len()];
-    let half: u32 = (lines.len() / 2) as u32;
-    let mut gamma_string = String::new();
-    let mut epsilon_string = String::new();
-
-    for line in lines {
-        for (index, character) in line.chars().enumerate() {
-            bits[index] += character.to_digit(10).unwrap();
-        }
-    }
-
-    for bit in bits {
-        if bit >= half {
-            gamma_string.push('1');
-            epsilon_string.push('0');
-        } else {
-            gamma_string.push('0');
-            epsilon_string.push('1');
-        }
-    }
-    let gamma_rate = isize::from_str_radix(&gamma_string, 2).unwrap();
-    let epsilon_rate = isize::from_str_radix(&epsilon_string, 2).unwrap();
-
-    println!("{}", gamma_rate * epsilon_rate);
-
-    Ok(())
-}
diff --git a/day4/Cargo.toml b/day4/Cargo.toml
deleted file mode 100644
index 8842130..0000000
--- a/day4/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day4"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day4/input.txt b/day4/input.txt
deleted file mode 100644
index 4c28ac7..0000000
--- a/day4/input.txt
+++ /dev/null
@@ -1,601 +0,0 @@
-76,69,38,62,33,48,81,2,64,21,80,90,29,99,37,15,93,46,75,0,89,56,58,40,92,47,8,6,54,96,12,66,83,4,70,19,17,5,50,52,45,51,18,27,49,71,28,86,74,77,11,20,84,72,23,31,16,78,91,65,87,79,73,94,24,68,63,9,88,82,30,42,60,13,67,85,44,59,7,53,22,1,26,41,61,55,43,39,3,35,25,34,57,10,14,32,97,95,36,98
-
-17 45 62 28 73
-39 12  0 52  5
-87 48 50 85 44
-66 57 78 94  3
-91 37 69 16  1
-
- 1 67  4 58 13
-25 54 34 63 87
-59 70 66 72 71
-33 17  8 20 85
-69 46 50 41 88
-
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-24  1 40 94 13
-56 62 74 81 95
-43 88 37 99 22
-57 52 33 84 49
-
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- 7 82 97 66 92
-95 77  5 86 84
-85 91 94 21 69
-23 12 13 98 46
-
- 1 63 58 23  0
-67 14 45 42 32
-48 64 83 10 13
-74 16  3 79 46
-44 52 95 25  6
-
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-88 76 70  0 72
-77  1 36 54  9
-14 17 75 64 15
-79 66 61 78 26
-
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-63 59 39 65 36
-95 21 67 41 74
- 9 97  4  2 49
-32 17 81  0 56
-
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-
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- 4 42 64 98 78
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-
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- 8  1 61 76 39
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-63 83  4 92 71
-
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-66 51 75  8 13
- 5 39 19  4 96
-
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- 4 59 24 79 22
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-67 99 92 62 86
-
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-
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-
-98 16 31 21 30
-58 10  3 89  7
-79 20 60 74 26
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-94 29 44 41 34
-
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-31 64 86 32 10
-25 82 13 61 22
-11 73  4 77 24
-
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-75 48 63 17 55
-69 47 22 45 60
-
-17 15 71 28 68
-12 76 27 25 14
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-75 67  2 26 42
-72 43  0 23 54
-
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-
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-78 11  3 64 77
-
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-38 12 65 35 61
-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-
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-38 14 19 72 26
-
-51 19 62 72 39
-36 83  6 33  9
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-66 61 16 30 35
-
-51 38  7 24 82
-23 12 46 55 85
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-53  2 77 99 34
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-
-37 32 35 63 93
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-73 69 49 80 33
-56 54 18 87 71
-29 98 85 58 17
-
-38  4 55 72 33
-29 63 86 52 75
- 7 47 34 53 14
-89 39 83 36 78
- 6 21 15 18 96
-
-56 19 40  0  7
-61 33 50 66 54
-93 91 64  6 45
-51 90 94 18 37
-15 28 13  2 44
-
-18 79  4 56 15
-38 80  8 42  5
-60 11 53 23 27
- 9 71 19 83 72
-39 97 98 99  7
-
-90 22 41 95 15
-20 18  7 70 49
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-31 89 50 40  9
-37 84  6 98 35
-
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-92 84  8 85 73
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-62  5 59 77 72
-79 97 60 11 70
-
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-53 55 35  8 64
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-17 95 13 38 90
-31 20 60 84  4
-
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-
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-11 51 52 83 64
-92 60  2 91 20
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-
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-94  5 60 92 89
-95 31 64 67 23
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-
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-18 37 69 44 38
-25 30 53 87 64
-28 23 14 10 81
-
-39 82 40 64 86
-26 81  3 85 50
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-17 55  8 56 59
-22 36 73 90  0
-
-18 67 50 70 71
-83  8 75 55 29
-66 33 39 88 16
-32 84 78 59  0
-11  3 61 65 36
-
- 1 12 66 59  9
-24 97 75 83 11
-45 16 14 31 71
-85 43 99 18 15
-61 56 80 69 29
-
-18 50 86 53 71
-67 36 14 24 55
-52 30 33 54 81
-72 51 39 28 42
-45 98 78 35 73
-
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-10 29 83 98  2
-88 73  7 84 50
-
-30 21 94 31  4
-20 68 91 55 51
-10 98  2 25 84
-64 97 29 28 58
-75 17 76 54 65
-
-17 11 88  9 66
- 1 59 60 79 55
-30 46 83 67 91
-23 45 99 90  6
-81 33  8 13 76
-
-25 68 43 59 51
-56 14 41 52 16
-62 36 12 37 71
-83 90 81 91  0
-95 92 29 54 26
-
-53 84 85 18 10
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- 4 81 82 77 30
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-22 83 47 61 14
-
-41 89 38 14 66
-70 92 26 97 53
-78 25  5  4 48
-54 86 31 23  0
-99 73  6 20 98
-
-18 81 96 60 47
-59 87 95 15 57
-34 17 26  7 42
-25 90 45 94  5
-10 41 32 20 98
-
-37  9 20 82 83
-84 14 62  3 76
-86 67 95 40 65
-57 26  1 19 69
-49 41 29 35 13
-
-29 74 69 92 48
-80 47 59 18 13
-98  5 64 89 83
-37 97 90 32 49
-25 87 39 21 63
-
- 1 61  5 82 66
-87 75 18 23 63
-38 51 33 59  4
-21 14 17 97 92
-94 45 84 22 10
-
-86 93  8 99 54
- 1  4 37 30 34
-80 17 50 74 97
-28 11  6 85 78
-94 76 92 63 79
-
-63 87 89 19 81
-72 90 71 96 16
-85 92 78 11 37
-50 17 68 82 66
-21  9 39 69 73
-
-30 63 90  5 45
-26 15 28 84 65
- 1 23  0 12 17
-61 98 21 39 56
-67 51  3  8 42
-
-54 91  9 70 93
-75 58 89 53 19
-77 64 45 78 14
- 7 31 99 42 51
-87 95 60 10 84
-
-98 35 66 42 85
-75 27 97 54  9
-16 15 60 44 49
-28 19 51 24 50
-59 18 37 88 39
-
-69 29 49  9 76
- 4 83 64 33  2
-67 81 88 70 39
-85 73 97 15  8
- 7 13 26 12  1
-
-57  3 65 28 87
-36 31 51 19  0
-56 77 41 20 76
-79 29 80 60 66
-55 61  8 30 15
-
- 2 42  3 17 40
-10 56 91 52 23
-76 39 75 82 49
-50 36 99  9 53
-92 66 48 31 41
-
-16 51 80 95 23
-36 84 33 56 11
-49 46 32 78 85
-67 29 94 26 22
-76  6 30 37  0
-
-27 94 79 48  4
-55 81 22 18 88
-93 15 59 41 11
-67 43 24 92 65
- 5  1 60 99 62
-
- 2 51 42 84 82
-80 28 43 93 72
-81 57 13 45 66
-34 22 53 37  3
-31 46 70 77 79
-
-17 12 22 53 74
-23 49 52 60 40
-64 98 97 75 57
-58 81 85 89 92
-42 34 65 87 18
-
-13  8 54 25 11
-84 72 66 78  1
-22 82 48 85 62
-68 99 18  3 57
-64 41 80 94 71
-
-45  5 56 30 62
-10 50 78 13 34
-90 97 85 36  0
-86 35 80 55 74
-47 99 59 61 18
-
-79 87 81 45 95
-24 91 27 18 16
-51 35 34 46 48
-39 40  6 70 99
- 1 82 63 32 50
-
-78 68 27 17 65
-74 15 21 38 24
-82 97 49  7 58
-19 23 87 79 22
-57 93 30  1 69
-
-64 13 40 21 89
- 3 95 20 79 59
-80 46 91 54  1
-62 66 30 60 47
-26 99 55 25  2
-
-47 83  7 71 81
- 9 72 12 20 96
-28 57 82 98 42
-34 59 18 69  1
-68 38 46 19 80
-
-43 39 48 84 87
-32 78  5 65 50
-86 13 20 22 70
-31  6 52 53 18
-73 25  4 60 99
-
-48 15 59 50 33
-93 99 46 70 21
-91 26 76 65 87
-10 27 78  5 96
- 4 63 22 82 20
-
-88 63 66 48 37
-39 47 56 52 27
-81 18 33 12 59
- 3 96 55 26 43
-42  4  7 28 22
-
-95 12 98 84 23
-37 35 78  9 61
-52 47 24 90 17
-55 87 18 80 41
-38  0 14 36 48
-
-62 72 56 78  8
-75 26 11 58 91
-38 74 52 65 45
-43 41 15 82 35
-89 27 21 54  0
-
-43 36 85 68 60
-26 89 84 10 80
-87 50 75 81 35
-12 46  6 70 59
-93 51 66 33 49
-
-68 32  0 63 54
-20 92 39 89 17
-48 60 87 36 14
-93 76 83 10 55
-64 74 80 11 41
-
- 9 32 11 41 87
-78 22  8 72 75
- 6 51 29 90 50
-21 68 47  2  7
-52 19 36 57 58
-
-83 36 25 31 99
-86 29 47 77 38
-13 51 20 59 27
-74 50  9 11 44
-52 95 81  2 70
-
-96 47 14 73 59
-84 87  7  4 46
-60 27 79 53 30
-58 28 55  5 43
-91 75 63 35 52
-
-41 66 27 50 56
-76 60 80 85 23
- 3 21 37 74 95
- 9 92 43  5 98
-79 49 88 24 70
-
-59 18 57 90 13
-79 29 12  2  0
-84 58 38 77 96
-33 89 43 11 44
-93 23 98 60 51
-
-58 86 28 17  1
- 6  4 81 55 53
-84 27 38 12 83
-50 43 40 85 88
-26 72 25 41 44
-
-14 92  7 98 12
-44 11 71 64 26
-88  8  2 56  6
-59  0 15 33 51
-10 52 89 53 34
-
-52  4  5 63 50
-15  8 60 70 13
-33 79 21 39 34
-84 91 30 12 71
-61 31 41  9 66
-
-43 67 52 92 54
-17 21 71 78 60
-19  0 88 61  2
-14 66 87 12 37
-89 23 25  4 24
-
-41 62  7 66 33
-59 87 84 80 71
-73 97 25 85 60
-86 64 61 54 83
-22 18 63 81 27
-
-92 89 50 11 73
-41 48 62 80 78
-46 55 81 16 94
-97 45  5 13 40
-14 75 22 42  2
diff --git a/day4/src/main.rs b/day4/src/main.rs
deleted file mode 100644
index 4b2f9b3..0000000
--- a/day4/src/main.rs
+++ /dev/null
@@ -1,107 +0,0 @@
-use std::fs::File;
-use std::io::{BufRead, BufReader};
-
-fn part1(grids: &Vec<Vec<u32>>, mut inputs: Vec<u32>) -> u32 {
-    let mut values = Vec::<u32>::new();
-
-    for _ in 0..4 {
-        values.push(inputs.remove(0));
-    }
-
-    let mut winner: i8 = -1;
-    for input in inputs {
-        if winner >= 0 {
-            break;
-        }
-        values.push(input);
-        for i in 0..grids.len() {
-            // Search by rows
-            for j in [0, 5, 10, 15, 20] {
-                let mut n = 0;
-                for k in 0..5 {
-                    let x = grids[i][j + k];
-                    if values.iter().any(|&i| i == x) {
-                        n += 1;
-                    }
-                }
-                if n == 5 {
-                    winner = i as i8;
-                }
-            }
-
-            // Search by cols
-            if winner < 0 {
-                for j in 0..5 {
-                    let mut n = 0;
-                    for k in [0, 5, 10, 15, 20] {
-                        let x = grids[i][j + k];
-                        if values.iter().any(|&i| i == x) {
-                            n += 1;
-                        }
-                    }
-                    if n == 5 {
-                        winner = i as i8;
-                    }
-                }
-            }
-
-            if winner >= 0 {
-                break;
-            }
-        }
-    }
-
-    let mut sum = 0;
-    for x in &grids[winner as usize] {
-        if values.iter().any(|&i| i == *x) {
-            continue;
-        }
-
-        sum += x;
-    }
-
-    sum * values.pop().unwrap()
-}
-
-fn main() -> std::io::Result<()> {
-    let file = File::open("input.txt")?;
-    let reader = BufReader::new(file);
-    let mut lines = reader.lines();
-
-    let inputs: Vec<_> = lines
-        .next()
-        .unwrap()
-        .unwrap()
-        .trim()
-        .split(',')
-        .map(|x| x.parse::<u32>().unwrap())
-        .collect::<Vec<u32>>();
-
-    let mut grids: Vec<Vec<u32>> = vec![];
-    let mut n: usize = 0;
-
-    lines.next(); // Ignore the first empty line
-    while let Some(line) = lines.next() {
-        let mut line = line.unwrap();
-        grids.push(Vec::with_capacity(5 * 5));
-
-        for _ in 0..5 {
-            grids[n].extend(
-                line.trim()
-                    .split(' ')
-                    .filter(|x| !x.is_empty())
-                    .map(|x| x.parse::<u32>().unwrap())
-                    .collect::<Vec<u32>>(),
-            );
-            line = match lines.next() {
-                Some(x) => x.unwrap(),
-                None => "".to_string(),
-            };
-        }
-        n += 1;
-    }
-
-    println!("{}", part1(&grids, inputs.clone()));
-
-    Ok(())
-}
diff --git a/day6/Cargo.toml b/day6/Cargo.toml
deleted file mode 100644
index 89d04ae..0000000
--- a/day6/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day6"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day6/input.txt b/day6/input.txt
deleted file mode 100644
index de918c7..0000000
--- a/day6/input.txt
+++ /dev/null
@@ -1 +0,0 @@
-1,1,3,5,1,1,1,4,1,5,1,1,1,1,1,1,1,3,1,1,1,1,2,5,1,1,1,1,1,2,1,4,1,4,1,1,1,1,1,3,1,1,5,1,1,1,4,1,1,1,4,1,1,3,5,1,1,1,1,4,1,5,4,1,1,2,3,2,1,1,1,1,1,1,1,1,1,1,1,1,1,5,1,1,1,1,1,1,1,1,2,2,1,1,1,1,1,5,1,1,1,3,4,1,1,1,1,3,1,1,1,1,1,4,1,1,3,1,1,3,1,1,1,1,1,3,1,5,2,3,1,2,3,1,1,2,1,2,4,5,1,5,1,4,1,1,1,1,2,1,5,1,1,1,1,1,5,1,1,3,1,1,1,1,1,1,4,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,3,2,1,1,1,1,2,2,1,2,1,1,1,5,5,1,1,1,1,1,1,1,1,1,1,1,1,2,2,1,1,4,2,1,4,1,1,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,1,5,1,1,1,1,1,1,1,1,3,1,1,3,3,1,1,1,3,5,1,1,4,1,1,1,1,1,4,1,1,3,1,1,1,1,1,1,1,1,2,1,5,1,1,1,1,1,1,1,1,1,1,4,1,1,1,1
diff --git a/day6/src/main.rs b/day6/src/main.rs
deleted file mode 100644
index 46a148c..0000000
--- a/day6/src/main.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-use std::fs::File;
-use std::io::{BufRead, BufReader};
-
-fn main() -> std::io::Result<()> {
-    let file = File::open("input.txt")?;
-    let mut reader = BufReader::new(file);
-    let mut buffer = String::new();
-
-    reader.read_line(&mut buffer)?;
-
-    let mut lanternfishes: Vec<_> = buffer
-        .trim()
-        .split(',')
-        .map(|x| x.parse::<i16>().unwrap())
-        .collect::<Vec<i16>>();
-
-    for _ in 0..80 {
-        let mut n = 0;
-        for lanternfish in lanternfishes.iter_mut() {
-            if *lanternfish == 0 {
-                *lanternfish = 6;
-                n += 1;
-            } else {
-                *lanternfish -= 1;
-            }
-        }
-
-        for _ in 0..n {
-            lanternfishes.push(8);
-        }
-    }
-
-    println!("{}", lanternfishes.len());
-
-    Ok(())
-}
diff --git a/day7/Cargo.toml b/day7/Cargo.toml
deleted file mode 100644
index b170ccb..0000000
--- a/day7/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day7"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day7/input.txt b/day7/input.txt
deleted file mode 100644
index 3e0fecf..0000000
--- a/day7/input.txt
+++ /dev/null
@@ -1 +0,0 @@
-1101,1,29,67,1102,0,1,65,1008,65,35,66,1005,66,28,1,67,65,20,4,0,1001,65,1,65,1106,0,8,99,35,67,101,99,105,32,110,39,101,115,116,32,112,97,115,32,117,110,101,32,105,110,116,99,111,100,101,32,112,114,111,103,114,97,109,10,62,461,1087,183,1096,431,412,200,486,1543,25,580,1030,15,65,1186,9,226,173,77,119,691,855,451,88,741,221,1465,190,779,327,179,627,366,288,174,1147,49,773,3,5,65,20,172,601,307,611,699,1168,933,1295,832,242,62,8,4,226,768,33,566,21,10,937,15,760,100,574,181,89,72,1054,225,28,0,685,661,131,281,933,90,233,109,1345,81,106,636,1262,193,172,1056,709,1176,447,536,1054,929,171,226,127,274,710,917,218,192,25,128,321,1816,515,181,759,20,258,134,281,151,99,479,623,534,72,576,534,337,54,293,450,230,963,14,357,446,1244,964,16,865,52,1,1171,77,7,275,313,894,577,305,1119,393,285,354,136,1147,241,441,166,1024,650,101,178,1514,186,902,367,5,431,374,56,507,857,1316,0,186,63,118,1062,62,446,266,47,354,168,65,1036,447,689,160,749,728,791,1066,99,675,194,891,153,737,801,254,905,1046,21,413,386,204,603,373,218,440,137,1340,1616,121,903,722,841,731,213,219,405,336,1345,144,329,285,213,272,717,47,126,1137,548,32,21,755,219,595,187,143,636,476,397,185,70,345,89,319,80,867,26,1166,509,24,16,151,605,1415,893,814,473,289,377,407,44,184,290,447,1669,116,319,455,294,145,513,58,247,186,1565,31,297,1,226,1051,1561,1233,254,1274,422,547,1638,354,1855,419,71,1003,626,519,109,96,996,117,32,226,424,184,181,720,1311,1162,11,86,438,408,1269,887,612,327,133,1117,1390,345,10,370,175,37,1154,659,707,193,665,65,359,758,1253,498,219,601,59,919,1371,289,9,437,392,626,981,2,51,733,780,101,541,770,464,28,616,81,1708,1515,719,780,1214,673,268,246,25,252,301,205,27,160,0,298,69,285,58,809,1369,812,628,353,47,632,123,168,135,277,303,614,365,330,1385,1117,1346,737,744,1403,385,215,437,276,726,673,668,494,164,1,763,696,487,252,375,1253,42,1111,963,58,63,11,1648,1080,964,526,454,1349,1098,95,59,78,36,42,654,1441,1129,464,740,355,370,44,4,154,986,439,828,287,969,765,565,836,196,387,556,34,586,438,1205,760,798,6,61,260,25,418,1628,566,3,530,753,758,16,92,30,1388,109,240,513,1048,1056,588,1634,418,297,195,447,1145,198,466,0,607,180,57,58,72,319,221,869,744,339,195,1295,268,1336,1310,38,714,326,393,445,422,102,389,188,147,21,805,381,520,561,282,438,115,431,156,482,50,890,470,22,60,46,1588,971,1219,82,380,1061,948,455,99,255,400,1832,91,225,280,520,279,91,172,92,946,434,182,164,142,83,91,281,538,962,77,1104,1522,310,4,961,62,9,1257,596,464,733,338,1166,334,380,509,773,90,498,480,1523,1632,530,543,413,589,748,4,861,11,233,192,699,33,615,1853,205,270,624,1132,1100,227,1402,349,183,179,645,4,1120,962,317,326,128,422,281,302,701,53,179,34,802,272,1254,375,764,418,16,160,943,479,416,717,644,1029,372,140,114,449,351,159,305,1299,749,488,502,180,210,17,533,258,120,333,1097,185,1911,451,360,66,1329,1260,209,1611,454,809,336,783,1438,20,26,609,720,155,578,367,231,1715,64,610,465,752,81,108,389,995,244,1291,1144,159,161,1630,561,813,261,67,1604,124,231,833,14,15,1245,1309,1165,103,1270,228,1,133,644,581,218,481,716,237,155,360,110,1408,931,99,216,5,21,67,348,927,325,759,1127,557,584,696,428,653,548,247,1519,1682,132,3,1648,230,229,136,253,543,1153,204,669,58,81,357,85,82,749,503,139,32,1170,1352,151,653,1441,51,392,474,2,114,64,418,125,514,838,473,794,331,13,327,1476,836,37,3,0,115,18,1784,300,190,99,997,1164,31,1255,96,64,1101,354,698,372,852,1508,100,289,32,704,292,504,191,1342,231,692,12,369,1182,62,809,566,688,218,2,539,234,996,444,228,456,369,115,23,29,226,940,95,404,349,1254,171,69,711,2,1405,1181,34,8,92,173,533,20,181,921,201,1236,185,457,526,2,106,12,601,58,339,457,590,15,1583,473,451,1124,1569,401,72,154,9,1331,471,165,516,463,543,298,197,43,1294,101,1058,1025,1099,4,634,90,104,870,480,412,290,11,924,338,30,281,83,268,20,848,1722,1060,987,9,196,266,28,402,267,199,814,986,440,906,796,1403,1394,62,136,442,412,1729,571,459,91,730,269,172,202,772,305
diff --git a/day7/src/main.rs b/day7/src/main.rs
deleted file mode 100644
index 26e1e30..0000000
--- a/day7/src/main.rs
+++ /dev/null
@@ -1,29 +0,0 @@
-use std::fs::File;
-use std::io::{BufRead, BufReader};
-
-fn main() -> std::io::Result<()> {
-    let file = File::open("input.txt")?;
-    let mut reader = BufReader::new(file);
-    let mut buffer = String::new();
-    reader.read_line(&mut buffer)?;
-
-    let mut inputs: Vec<_> = buffer
-        .trim()
-        .split(',')
-        .map(|x| x.parse::<i16>().unwrap())
-        .collect::<Vec<i16>>();
-
-    inputs.sort();
-
-    let half: usize = inputs.len() / 2;
-    let middle = inputs[half];
-    let mut sum: u32 = 0;
-
-    for input in inputs {
-        sum += (input - middle).abs() as u32;
-    }
-
-    println!("{}", sum);
-
-    Ok(())
-}
diff --git a/day9/Cargo.toml b/day9/Cargo.toml
deleted file mode 100644
index b5e5273..0000000
--- a/day9/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "day9"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/day9/example.txt b/day9/example.txt
deleted file mode 100644
index 6dee4a4..0000000
--- a/day9/example.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-2199943210
-3987894921
-9856789892
-8767896789
-9899965678
diff --git a/day9/input.txt b/day9/input.txt
deleted file mode 100644
index 10120f9..0000000
--- a/day9/input.txt
+++ /dev/null
@@ -1,100 +0,0 @@
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diff --git a/day9/src/lib.rs b/day9/src/lib.rs
deleted file mode 100644
index 3391a74..0000000
--- a/day9/src/lib.rs
+++ /dev/null
@@ -1,90 +0,0 @@
-use std::str::FromStr;
-
-#[derive(Debug)]
-struct Heightmap {
-    data: Vec<Vec<u8>>,
-    rows: usize,
-    cols: usize,
-}
-
-impl FromStr for Heightmap {
-    type Err = ();
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        let rows: Vec<_> = s.trim().split('\n').collect::<Vec<&str>>();
-        let mut data: Vec<Vec<u8>> = vec![];
-        for row in &rows {
-            data.push(
-                row.chars()
-                    .map(|x| x.to_digit(10).unwrap() as u8)
-                    .collect::<Vec<u8>>(),
-            );
-        }
-        Ok(Heightmap {
-            data,
-            rows: rows.len(),
-            cols: rows[0].chars().count(),
-        })
-    }
-}
-
-impl Heightmap {
-    fn resolve(&self) -> usize {
-        let mut count: usize = 0;
-
-        for i in 0..self.rows {
-            for j in 0..self.cols {
-                let top = if i > 0 { self.data[i - 1][j] } else { 10 };
-
-                let bottom = if i < self.rows - 1 {
-                    self.data[i + 1][j]
-                } else {
-                    10
-                };
-
-                let left = if j > 0 { self.data[i][j - 1] } else { 10 };
-
-                let right = if j < self.cols - 1 {
-                    self.data[i][j + 1]
-                } else {
-                    10
-                };
-                let center = self.data[i][j];
-
-                if center < top && center < bottom && center < left && center < right {
-                    count += (center + 1) as usize;
-                }
-            }
-        }
-
-        count
-    }
-}
-
-pub fn part1(input: &str) -> usize {
-    let grid: Heightmap = input.parse().unwrap();
-    let result = grid.resolve();
-
-    result
-}
-
-#[cfg(test)]
-mod day9_test {
-    use super::*;
-
-    #[test]
-    fn test_with_example_data() {
-        let data = include_str!("../example.txt");
-        let result = part1(data);
-
-        assert_eq!(result, 15);
-    }
-
-    #[test]
-    fn test_puzzle_input_part1() {
-        let data = include_str!("../input.txt");
-        let result = part1(data);
-
-        assert_eq!(result, 541);
-    }
-}
-- 
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