using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine($"1 + 2 = {1 + 2}");

        Console.WriteLine($"1 - -2 = {1 - -2}");

        Console.WriteLine($"1 * 2 = {1 * 2}");

        Console.WriteLine($"1 / 2 = {1 / 2}");

        Console.WriteLine($"1 / 2.0 = {1 / 2.0}");

        Console.WriteLine($"5 % 3 = {5 % 3}");

    }

}