using System;

public class Program

{

    public static void Main()

    {

        int addition = 20 + 10; // Result 30

        int subtraction = 20 - 10; // Result 10

        int multiplication = 20 * 10; // Result 200

        int division = 20 / 10; // Result 2

        int modulus_1 = 7 % 3; // Result 1

        double modulus_2 = 14.9 % 3.9; // Result 3.2

​

        Console.WriteLine($"addition : {addition}");

        Console.WriteLine($"subtraction : {subtraction}");

        Console.WriteLine($"multiplication : {multiplication}");

        Console.WriteLine($"division : {division}");

        Console.WriteLine($"modulus_1: {modulus_1}");

        Console.WriteLine($"modulus_2: {modulus_2}");

    }

}