using System;

public class Program

{

    public static void Main()

    {

        start:

        Console.WriteLine("Enter a number guess.");

        int guess = byte.Parse(Console.ReadLine());

        Console.Clear();

        if (guess == 18)

        {

            Console.WriteLine("You Win!");

            goto start;

        }

        else if (guess < 18)

        {

            Console.WriteLine("Pick a higher number!");

            goto start;

        }

        else if (guess > 18)

        {

            Console.WriteLine("Pick a lower number!");

            goto start;

        }

    }

}