using System;

public class Program

{

    public static void Main()

    {

            Program obj = new Program();

            obj.readdata();

            obj.leap();

        }

        int y;

        public void readdata()

        {

            Console.WriteLine("Enter the Year in Four Digits : ");

            y = Convert.ToInt32(Console.ReadLine());

        }

        public void leap()

        {

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

            {

                Console.WriteLine("{0} is a Leap Year", y);

            }

            else

            {

                Console.WriteLine("{0} is not a Leap Year", y);

            }

        }

}   

​