using System;
public class Program
{
public static void Main()
Console.WriteLine("Please enter a guess.");
start:
int guess = int.Parse(Console.ReadLine());
if (guess == 18)
Console.WriteLine("You Win!");
else if (guess < 18)
{ Console.WriteLine("Pick a higher number");
goto start; }
else if (guess > 18)
{ Console.WriteLine("Pick a lower number");
}