int num_to_guess;
            int user_guess;
            int score = 0;
            Random rnd = new Random();
            for (int i = 0; i < 10; i++)
            {
                Console.WriteLine("Round Num {0}", i + 1);
                int trial_counter = 0;
                num_to_guess = rnd.Next(1, 100);
                do
                {
                    user_guess = int.Parse(Console.ReadLine());
                    trial_counter++;
                    if (user_guess < num_to_guess)
                    {
                        Console.WriteLine("Select bigger num");
                    }
                    else if (user_guess > num_to_guess)
                    {
                        Console.WriteLine("Select smaller num");
                    }
                }
                while (user_guess != num_to_guess && trial_counter < 5);
                if (user_guess == num_to_guess)
                {
                    Console.WriteLine("hooray, hooray - user guess the correcr number - {0}", num_to_guess);
                    score += 10;
                    Console.WriteLine("SCORE - {0}", score);
                }
                else
                {
                    Console.WriteLine("you failed - the number is {0}", num_to_guess);
                }
            }
            Console.WriteLine("you SCORE is {0}", score);