using System;

​

public class Program

{

    public static void Main()

    {

        Program calculate = new Program();

            string numA = Console.ReadLine();

        string numB = Console.ReadLine();

        float num1 = float.Parse(numA);

        float num2 = float.Parse(numB);

        calculate.addition(num1, num2);

        calculate.subtraction(num1, num2);

        calculate.multiplication(num1, num2);

        calculate.division(num1, num2);

    }

​

    public void addition(float num1, float num2)

    {

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

    }

​

    public void subtraction(float num1, float num2)

    {

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

    }

    public void multiplication(float num1, float num2)

    {

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

    }

​

    public void division(float num1, float num2)

    {

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

    }

}