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First solution in Uncategorized category for Unlucky Days by zgub4
import datetime
def checkio(year):
counter = 0
for month in range(1, 13):
if datetime.date(year, month, 13).strftime("%A") == "Friday":
counter += 1
return counter
if __name__ == '__main__':
assert checkio(2015) == 3, "First - 2015"
assert checkio(1986) == 1, "Second - 1986"
Oct. 22, 2017