using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter the year to check");

        var year=Console.ReadLine();

        int leapYear=int.Parse(year);

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

            Console.WriteLine("{0} is leap year",leapYear);

        else

            Console.WriteLine("{0} is not a leap year",leapYear);

    }

}