using System;

using System.Diagnostics;

using System.Threading;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var timerSubmitLoad = new Stopwatch();

        timerSubmitLoad.Start();

        Thread.Sleep(1000);

        timerSubmitLoad.Stop();

        Console.WriteLine(timerSubmitLoad.ElapsedMilliseconds);

        timerSubmitLoad.Restart();

        Thread.Sleep(500);

        timerSubmitLoad.Stop();

        Console.WriteLine(timerSubmitLoad.ElapsedMilliseconds);

    }

}