import java.util.Scanner;

class Demo{     public static void main(String args[]){         Scanner scan = new Scanner(System.in);         System.out.println("请输入一个年份：");         System.out.print(leapYear(scan.nextInt()));     }     public static String leapYear(int num){         if (num=>0)             return (num%4==0 && num%100!=0 || num%400==0)?"闰年":"平年";         return "输入错误"     }
}