using System;

public class Program

{

    public static string CekGanjilGenap(int angka)

    {

        if(angka % 2 == 0)

        {

            return "GENAP";

        }

        return "GANJIL";

    }

    public static void Main()

    {

        Console.WriteLine("Masukan angka : ");

        var input = Console.ReadLine();

        int intInput = Convert.ToInt32(input);

        var output = CekGanjilGenap(intInput);

        Console.WriteLine(output);

    }

}