static void Main(string[] args)
        {
            WorkPerformerdHandler del1 = new WorkPerformerdHandler(WorkPerformed1);
            WorkPerformerdHandler del2 = new WorkPerformerdHandler(WorkPerformed2);
            WorkPerformerdHandler del3 = new WorkPerformerdHandler(WorkPerformed3);

            del1 += del2 + del3;

            DoWork(del1);
        }
 static void DoWork(WorkPerformerdHandler del)
 {
     del(5, WorkType.GoToMeetings);
 }