using System;

public class Program

{

    public static void Main()

    {

        int FirstNumber, SecondNumber, Answer;

            string choice;

​

            Console.WriteLine("Console Calculator SELECT OPERATION: ");

            Console.WriteLine("- Addition");

            Console.WriteLine("- Subtraction");

            Console.WriteLine("- Multiplication");

            choice = Console.ReadLine();

​

            if (choice == "Addition") 

            {

                Console.WriteLine("Enter First Number: ");

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

                Console.WriteLine("Enter Second Number: ");

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

​

                Answer = FirstNumber + SecondNumber;

​

                Console.WriteLine("The Answer is: {0}", Answer);

​

                if (Answer == 10)

                {

                    Console.WriteLine("Your Answer is equal to 10");

                }

                else

                {

                    Console.WriteLine("Your answer is not equal to 10");

                }

            }

            else if (choice == "Subtraction") 

            {

                Console.WriteLine("Enter First Number: ");

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

                Console.WriteLine("Enter Second Number: ");

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

​

                Answer = FirstNumber - SecondNumber;

​

                Console.WriteLine("The Answer is: {0}", Answer);

            }

            else if (choice == "Multiplication") 

            {

                Console.WriteLine("Enter First Number: ");

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

                Console.WriteLine("Enter Second Number: ");

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

​

                Answer = FirstNumber * SecondNumber;

​

                Console.WriteLine("The Answer is: {0}", Answer);

            }

            else

            {

                Console.WriteLine("There is no selected operation");

            }   

​

    }

     }