#include <stdio.h>

int main(void){
	int yr;
        for(yr=1980;yr<=2012;yr++){
                if(yr%400==0||yr%4==0&&(yr%100!=0)){
                        printf("%d is a leap year!\n",yr);
                } else {
                        printf("%d is not a leap year!\n",yr);
                }
        }
        
        return 0;
}