Vpis 13.4 Prce s tdou Task 
static void DemoTask() {
Console.WriteLine("=== Voln ve td Task ===");
Task t1 = Task.Create(delegate { Operation(1); });
Task t2 = Task.Create(delegate { Operation(2); });
Task t3 = Task.Create(delegate { Operation(3); });
Task t4 = Task.Create(delegate { Operation(4); });
TaskCoordinator.WaitAll( new Task[] { t1, t2, t3, t4 } );
}
