using System;

​

using System.Threading;

​

​

namespace Threads

{

    public class Program

    {

        static int done = 100;

        static Thread wt = new Thread(Func);

        public static void Main(string[] args)

        {

            wt.Start();

            while(done > 0)

            {

                lock((object)done)

                {

                    Console.Write("{0} ", done);

                    done--;

                }

            }

        }

​

        static void Func()

        {

            while(done > 0)

            {

                lock ((object)done)

                {

                    Console.Write("{0} ", done);

                    done--;

                }

            }

        }

    }

}