1 files changed, 3 insertions, 0 deletions
diff --git a/progs/a813.py b/progs/a813.py
new file mode 100644
index 0000000..67d4eec
--- /dev/null
+++ b/progs/a813.py
@@ -0,0 +1,3 @@
+def extract_string(str, l):
+    result = [e for e in str if len(e) == l] 
+    return result
+\ No newline at end of file