int n, rand, count = 0, count1 =0, count2 =0;
            Console.WriteLine("enter a full number n");
            n = int.Parse(Console.ReadLine());
            Random randNum = new Random();
            for (int i = 1; i <= n; i++)
            {
                rand = randNum.Next(8, 11);

                if (rand == 8)
                {
                    count++;
                }
                if (rand == 9)
                {
                    count1++;
                }
                if (rand == 10)
                {
                    count2++;
                }
            }
            if((count > count1) && (count > count2))
            {
                Console.WriteLine(8);
            }
            if((count1 > count) && (count1 > count2))
            {
                Console.WriteLine(9);
            }
            if((count2 > count1)&&(count2 >count))
            {
                Console.WriteLine(10);
            }