Problem Statement
import sys
def is_leap_greg(year):
return (year % 400 == 0) or ((year % 4 == 0) and (year % 100 != 0))
def is_leap_jul(year):
return year % 4 == 0
def solve(year):
target = 256
months = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
if year < 1918:
if is_leap_jul(year):
months[1] = 29
elif year > 1919:
if is_leap_greg(year):
months[1] = 29
elif year == 1918:
target += 13
sum_tmp = 0
for ind, el in enumerate(months):
if sum_tmp + el > target:
month = '0' + str(ind + 1)
day = target - sum_tmp
break
else:
sum_tmp += el
return ".".join([str(day), str(month), str(year)])
year = int(input().strip())
result = solve(year)
print(result)
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