public final CC gap(String ... args)
	{
		switch (args.length) {
			default:
				throw new IllegalArgumentException("Illegal argument count: " + args.length);
			case 4:
				gapBottom(args[3]);
			case 3:
				gapTop(args[2]);
			case 2:
				gapRight(args[1]);
			case 1:
				gapLeft(args[0]);
		}
		return this;
	}