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class ValoreNegativo(ValueError):
def __str__(self):
return 'Il valore non e\' maggiore di 0'
a = []
i = 0
while i < 14:
try:
num = input()
if num < 0:
raise ValoreNegativo
a.append(num)
i += 1
except ValoreNegativo, e:
print(e)
diff = i = 0
tot = len(a)
for i in range(tot):
minore = a[i]
for j in range(i, tot-1):
if a[j] == minore:
continue
elif a[j] > minore:
diffp = a[j] - minore
if diffp > diff and diffp > 0:
x = i
y = j
diff = diffp
print('Ti conviene comprare a {} giorno {} e vendere a {} giorno {}'.format(a[x], x + 1, a[y], y + 1))
print('Guadagneresti ' + str(diff))
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