using System;

public class Program

{

    public static void Main()

    {

        int num1;

        int num2;

        int sum;

        int product;

        int ratio;

        int difference;

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

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

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

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

        sum=num1+num2;

        product=num1*num2;

        ratio=num1/num2;

        difference=num1-num2;

        Console.WriteLine("Sum = " + sum);

        Console.WriteLine("Product = " + product);

        Console.WriteLine("Ratio = " + ratio);

        Console.WriteLine("Difference = " + difference);

    }

}

​