using System;

public class Program

{

    public static void Main()

    {

        //Arleth Cabral

        int x;

        Console.WriteLine("Please a positive number higher than 20");

        x = int.Parse(Console.ReadLine());

        if (x % 2 == 0)

        {

            Console.WriteLine("Good job!");

            {

                x++;

                    Console.WriteLine("Try again");

}

        }

    }}