private String romX(int x) {
    	switch (x) {
    	case 1: return "X";
    	case 2: return "XX";
    	case 3: return "XXX";
    	case 4: return "XL";
    	case 5: return "L";
    	case 6: return "LX";
    	case 7: return "LXX";
    	case 8: return "LXXX";
    	case 9: return "XC";
    	default:return "";
    	}
	}