using System;

using System.Threading;

public class Program

{

    public static void Main()       

    {

        Thread[] arrT = new Thread[2];

        arrT[0] = new Thread(new ThreadStart(new Program().TestThread1));

        arrT[1] = new Thread(new ThreadStart(new Program().TestThread2));

        foreach(Thread th in arrT) {

            th.Start();

        }

        Console.ReadLine();

    }

    private void TestThread1()

    {

        int count=0;

        while(count++<50)

        {

            Console.WriteLine("Thread 1 executed {0} times.",count);

            Thread.Sleep(1);

        }

    }

    private void TestThread2()

    {

        int count=0;

        while(count++<50)

        {

            Console.WriteLine("Thread 2 executed {0} times.",count);

            Thread.Sleep(1);

        }

    }

}