static void Main(string[] args)
        {
            var persons = new List<Person>();
            var person1 = new Person("Петя");
            var person2 = new Person("Вова");
            var person3 = new Person("Дима");
            OfficeEventListener officeEventListener1 = new OfficeEventListener(person1, persons);
            OfficeEventListener officeEventListener2 = new OfficeEventListener(person2, persons);
            OfficeEventListener officeEventListener3 = new OfficeEventListener(person3, persons);
            person3.Come(new DateTime(2014, 04, 22, 18, 24, 00));
            person1.Come(new DateTime(2014, 04, 22, 10, 24, 00));
            person2.Come(new DateTime(2014, 04, 22, 13, 24, 00));

            Console.ReadLine();
        }