public static void AnimalShelterMy()
        {
            AnimalShelter ash = new AnimalShelter();

            ash.Enque(new Animal(Type.Dog, 1));
            ash.Enque(new Animal(Type.Cat, 2));
            ash.Enque(new Animal(Type.Cat, 3));
            ash.Enque(new Animal(Type.Dog, 4));
            ash.Enque(new Animal(Type.Cat, 5));

            Console.WriteLine(ash.DequeueAny());
            Console.WriteLine(ash.DequeCat());
            Console.WriteLine(ash.DequeDog());
            Console.WriteLine(ash.DequeCat());

            Console.WriteLine(ash.DequeDog());
        }