using System.Threading;

public class Program

{

    static int count = 0;

    public static void Main()

    {       

        Thread thread1 = new Thread(Increment);

        Thread thread2 = new Thread(Increment);

        thread1.Start();

        thread2.Start();

    }

    public static void Increment()

    {

        for(int i = 0; i < 10000; i++)

        {

            Interlocked.Increment(ref count);

            Console.WriteLine(count);

        }

    }

}