public static String nameToNumber(String name) {
		StringBuilder s = new StringBuilder();
		for (char c : name.toLowerCase(Locale.ENGLISH).toCharArray()) {
			if (Character.isLetter(c)) {
				int index = c - 'a';
				if (index < 0 || index > REV.length) {
					continue;
				}
				int i = REV[index];
				if (i > 0) {
					s.append((char)(i+'0'));
				}
			}
		}
		return s.toString();
	}