using System;
using System.Threading;
using System.Runtime.InteropServices;
 
public class HelloWorld
{
	public static void Main (String[] args) {
		var t = new Thread (delegate () {
				Console.WriteLine ("In thread.");
				Thread.Sleep (1000);
			});
		t.Start ();
		t.Join ();
 		Console.WriteLine ("Hello, World!");
 	}
 }