#include <stdio.h>

int isLeapYear(int year)
{
	if((year % 4) == 0){
		if((year % 100) == 0){
			if((year % 400) == 0){
				return 1;
			}else{
				return 0;
			}
		}else{
			return 1;
		}
	}else{
		return 0;
	}
}

int main()
{
    int year;
    printf("Enter any year: ");
    scanf("%d", &year);
    if(isLeapYear(year)) {
        printf("%d is leap year!\n", year);
    } else {
        printf("%d is not leap year!\n", year);
    }


	return 0;
}