using System;

​

namespace ConsoleApplication1

{

    public class Program

    {

        public static void Main(string[] args)

        {

            int number;

​

            Console.WriteLine("Please enter a number:");

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

​

           if((number > 10) && (number < 20))

    Console.WriteLine("Hey! The number should be greater than 10 or less than 20!");

else

    Console.WriteLine("Good job!");

​

            Console.ReadLine();

        }

    }

}