using System;

public class Program

{

    public static void Main()

    {

        for ( ; ; )

        {

            Random randomnumbobj = new Random();

            int randomNmb = randomNmbobj.Next(1,11);

            Console.WriteLine("Guess a number");

            int nu = Convert.ToInt32(Console.ReadLine());

            while (nu != randomNmb);

            {

                Console.WriteLine("Wrong number");

                Console.WriteLine("Guess a numer");

                nu = Convert.ToInt32(Console.ReadLine());

            }

            Console.WriteLine("well done, correct");

        }

    }

}