static void Main(string[] args)
{
ClockManager clockManager = new ClockManager();
FirstSubscriber sub1 = new FirstSubscriber();
SecondSubscriber sub2 = new SecondSubscriber();
sub1.Register(clockManager);
sub2.Register(clockManager);
clockManager.SimulateTimeOut(5);
Thread.Sleep(5000);
clockManager.SimulateTimeOut(3);
Thread.Sleep(5000);
sub1.Unregister(clockManager);
clockManager.SimulateTimeOut(4);
Console.ReadKey();
}
