using System;

public class Program

{

    public static void CalculateVolume(int length, int width = 1, int height = 2)

    {

        int volume = length * width * height;

        Console.WriteLine($"Volume = {volume}");

    }

    public static void Main()

    {

        CalculateVolume(length: 6);

        CalculateVolume(length: 6, height: 3);

        CalculateVolume(6, 4, 3);

    }

}