static void Main(string[] args)
        {
            var monkey   = new MonkeyHandler();
            var squirrel = new SquirrelHandler();
            var dog      = new DogHandler();

            monkey.setNext(squirrel).setNext(dog);

            Console.WriteLine("Chain: Monkey > Squirerel > Dog\n");
            ChainOfResponsibilityClient.ClientCode(monkey);
            Console.WriteLine();

            Console.WriteLine("Subchain: Squirrel > Dog\n");
            ChainOfResponsibilityClient.ClientCode(squirrel);
        }