public static int theLoveLetterMystery(String s) {
    // Write your code here
    int count = 0;
        StringBuilder sb = new StringBuilder(s);
        String str = sb.reverse().toString();
        if (s.contentEquals(str)) {
            return count;
        } else {
            for (int i = 0; i < s.length() / 2; i++) {
                count += Math.abs(s.charAt(i) - s.charAt(s.length() - 1 - i));
            }
            return count;
        }
    }