using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("請輸入年份：");

        int year = int.Parse(Console.ReadLine());

        if((year%4 == 0 && year%100 != 0) || (year%400 == 0))

        {

            Console.WriteLine("{0}是閏年",year);

        }

        else

        {

            Console.WriteLine("{0}是平年",year);

        }

    }

}