It’s time for yet another code trivia and it’s business as usual. What will the following program output to the console?

using System;
using System.Drawing;
using System.Threading;

class Program
{
    [ThreadStatic]
    static Point Mark = new Point(1, 1);

    static void Main()
    {
        Thread.CurrentThread.Name = "A";

        MoveMarkUp();

        var helperThread = new Thread(MoveMarkUp) { Name = "B" };

        helperThread.Start();
        helperThread.Join();
    }

    static void MoveMarkUp()
    {
        Mark.Y++;

        Console.WriteLine("{0}:{1}", Thread.CurrentThread.Name, Mark);
    }
}