public class Main {
    public static void main(String[] args) {
        Support alice   = new NoSupport("Alice");
        Support bob     = new LimitSupport("Bob", 100);
        Support charlie = new SpecialSupport("Charlie", 429);
        Support elmo    = new OddSupport("Elmo");

        alice.setNext(bob).setNext(charlie).setNext(elmo);

        for (int i = 0; i < 500; i += 33) {
            alice.support(new Trouble(i));
        }
    }
}