题解 | #日期差值#

from datetime import datetime, timedelta


def split_time(str):
    year = str[0:4]
    month = str[4:6]
    day = str[6:]
    return int(year), int(month), int(day)


str1 = input()
str2 = input()
year1, month1, day1 = split_time(str1)
year2, montn2, day2 = split_time(str2)
datetimeobj1 = datetime(year1,month1,day1)
datetimeobj2 = datetime(year2, montn2, day2)
delta=datetimeobj2-datetimeobj1

print("{}".format(delta.days+1), end="\n")