using System;

using System.Threading;

class ThreadClass{

    public  void Thread1(){

        for(int i=0 ;i<10;i++)

        {

            Thread.Sleep(200);

            Console.WriteLine(i);

        }

    }

}

public class Program

{

    public static void Main()

    {

        ThreadClass tc =new ThreadClass();

        Thread t1 = new Thread(new ThreadStart(tc.Thread1));

        Thread t2 = new Thread(new ThreadStart(tc.Thread1));

        t1.Start();

        t2.Start();

    }

}