class Wow {
    Closure myCounter (int start) { return new ClosureImplementation(start);}

    public static void main(String[] args) {
        Wow w = new Wow();
        Closure c = w.myCounter(15);
        Closure c2 = w.myCounter(2);

        c.apply();
        c.apply();

        c2.apply();

        c.apply();
        c.apply();

        c2.apply();
        c2.apply();

    }

    class ClosureImplementation implements Closure {
        private int counter;

	ClosureImplementation(int start) { counter = start; }
	public void apply () {System.out.println(counter++);}
    }
}