#include<stdio.h>
int
main() {
printf
(
"请输入年份:"
);
a;
scanf
"%d"
, &a);
if
(((a % 4 == 0) && (a % 100 != 0))||(a % 400 == 0))
"本年份是闰年"
else
"本年份不是闰年"
return
0;
}