import java.util.*;

enum Color {
    BROWN(Flavor.CHOCOLATE),
    RED(Flavor.STRAWBERRY),
    WHITE(Flavor.VANILLA);
    final Flavor flavor;
    Color(Flavor flavor) {
	this.flavor = flavor;
    }
}

enum Flavor {
    CHOCOLATE(Color.BROWN),
    STRAWBERRY(Color.RED),
    VANILLA(Color.WHITE);
    final Color color;
    Flavor(Color color) {
	this.color = color;
    }
}

class Neapolitan {

    static <T,U> List<U> map(List<T> list, {T=>U} transform) {
	List<U> result = new ArrayList<U>(list.size());
	for (T t : list) {
	    result.add(transform.invoke(t));
	}
	return result;
    }

    public static void main(String[] args) {
	List<Color> colors = map(Arrays.asList(Flavor.values()), { Flavor f => f.color });
	System.out.println(colors.equals(Arrays.asList(Color.values())));

	List<Flavor> flavors = map(Arrays.asList(Color.values()), { Color c => c.flavor });
	System.out.println(flavors.equals(Arrays.asList(Flavor.values())));
    }
}