using System;

public class Program

{

    public static void Main()

    {

        float num1,num2,ans;

        Console.WriteLine("Type Number 1 : ");

        num1=Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Type Number 2 : ");

        num2=Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Choose Your symbol +, - ,/, *, %");

        =Console.ReadLine();

            Console.WriteLine("Invalid Choice ans=num1+num2}",choice);

        }

            Console.WriteLine("correct answer is {40} ",ans);

    }

}