题解 | 判断闰年

import sys

for line in sys.stdin:
    a = line.split()
    if int(a[0]) % 400 == 0:
        print('yes')
    elif int(a[0]) % 4 == 0 and int(a[0]) % 100 != 0:
        print("yes")
    else:
        print("no")