using System;

​

public class Program

{

    public static void Main()

    {

        Random randomNumber = new Random();

        int res;

        int test;

        Console.WriteLine("Enter the number of question");

        int Q = int.Parse(Console.ReadLine()); //by user

        Console.WriteLine("the number of question=" + Q);

        int b = randomNumber.Next(1, 10);

        int c = randomNumber.Next(1, 10);

        int num1 = b;

        int num2 = c;

        for (int i = 1; i <= Q; i++)

        {

            Console.WriteLine("num1=" + num1);

            Console.WriteLine("num2=" + num2);

            int a =  randomNumber.Next(1, 6);

            Console.WriteLine("case=" + a);

            if (a == 1)

            {

                Console.WriteLine("num1*num2=");

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

                if ((num1 * num2) == res)

                    Console.WriteLine("Correct");

                else

                    Console.WriteLine("false");

            }

            else if (a == 2)

            {

                Console.WriteLine("result=num1/num2=");

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

                if ((num1 / num2) == res)

                    Console.WriteLine("Correct");

                else

                    Console.WriteLine("false");

            }

            else if (a == 3)

            {

                Console.WriteLine("num1+num2=");

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

                if ((num1 + num2) == res)

                    Console.WriteLine("Correct");

                else

                    Console.WriteLine("false");

            }

            else if (a == 4)

            {

                Console.WriteLine("num1-num2=");

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

                if ((num1 - num2) == res)

                    Console.WriteLine("Correct");

                else

                    Console.WriteLine("false");

            }

            else

            {

                Console.WriteLine("num1%num2=");

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

                if ((num1 % num2) == res)

                    Console.WriteLine("Correct");

                else

                    Console.WriteLine("false");

            }

        }

    }

}