int parseRoman(char s) {
		switch (s) {
		case 'M':
			return 1000;
		case 'D':
			return 500;
		case 'C':
			return 100;
		case 'L':
			return 50;
		case 'X':
			return 10;
		case 'V':
			return 5;
		case 'I':
			return 1;
		}

		return 0;
	}