#欢迎观看我的CSDN
year = int(input("year="))
month = int(input("month="))
day = int(input("day="))
while True:
if year % 100 == 0 and year % 400 == 0:
if month == 1:
x1 = day
if month >= 2:
x1 = (month-1) * 30 + day + 1
print("{}年{}月{}日是该年的第{}天".format(year, month, day, x1))
if year % 100 != 0 and year % 400 != 0:
print("该年为平年")
x2 = (month-1) * 30 + day
print("{}年{}月{}日是该年的第{}天".format(year, month, day, x2))
break #跳出循环