using System;

using System.IO;

public class Program

{

    public static void Main()

    {

        var ms = new MemoryStream();

        Console.WriteLine("GetBuffer: " + ms.GetBuffer().Length);

        Console.WriteLine("ToArray: " + ms.ToArray().Length);

        ms.WriteByte(0);

        Console.WriteLine("GetBuffer: " + ms.GetBuffer().Length);

        Console.WriteLine("ToArray: " + ms.ToArray().Length);

    }

}