#include <stdio.h>
int main(void)
{
    int year;
    printf("Please input year count:\n");
    scanf("%d", &year);
    if ((year%4==0 && year%100!=0)||(year%400==0)) printf("This year is ");
    else printf("This year is not ");
    printf("leap.");
    getchar();
    return 0;
}