using System;

public class Program

{

    public bool leapYear(int year) {

        //year = Convert.ToInt32(Console.ReadLine());

        if (year%4 == 0) {

            if (year%100 == 0) {

                if (year%400 == 0) {

                    return true;

                } 

                else return false;

            }

            else return true;

        }

        else return false;

    }

    public static void Main(string[] args)

    {

        int year = Convert.ToInt32(Console.ReadLine());

        //leapYear objj = new leapYear();

        Program objj = new Program();

        if (objj.leapYear(year))

            Console.WriteLine("Leap Year");

        else Console.WriteLine("NOT a Leap Year");

    }

}