using System;

​

public class Program

    {

        public static void Main()

        {

            int number = 0;

            int tries = 0;

            do{

                Console.WriteLine("What is 2+2?");

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

                tries++;

                if(number !=4){

                    Console.WriteLine("Wrong - Try again");

                }

            }while(number != 4);

            Console.WriteLine("Correct")

        }

}