using System;

using System.Diagnostics;

using System.Threading;

​

public class Program

{

    public static void Main()

    {

        // Create new stopwatch.

        Console.WriteLine("m");

        Stopwatch stopwatch = new Stopwatch();

​

        // Begin timing.

        stopwatch.Start();

​

        // Do something.

        for (int i = 0; i <200; i++)

        {

            Thread.Sleep(1);

        }

​

        // Stop timing.

        stopwatch.Stop();

​

        // Write result.

        Console.WriteLine("Time elapsed: {0}", stopwatch.Elapsed);

    }

}