import java.util.*;
public class LeapYear{
//求闰年
public static void main(String[] args){
Scanner in=new Scanner(System.in);
System.out.println("请输入年份");
int year=in.nextInt();
if(year%4==0&&year%100!=0||year%400==0) {
System.out.println(year+"是一个闰年");
}else{
System.out.println(year+"是一个平年");
}
}
}