using System;

public class Program

{

    public static void Main()

    {

        int year;

        Console.Write("Enter Year: ");

        if(int.TryParse(Console.ReadLine(),out year)){

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

                Console.WriteLine("Leap Year");

            }

            else{

                Console.WriteLine("Not a Leap Year");

            }

        }

        else{

            Console.WriteLine("Parsing Error");

        }

    }

}