// @skip-test until fixed.

class CompareBySubtraction {
    public int compare(int[] a1, int[] a2) {
        if (a1 == a2) {
            return 0;
        }
        int tmp;
        tmp = a1.length - a2.length;
        if (tmp != 0) {
            return tmp;
        }
        for (int i = 0; i < a1.length; i++) {
            if (a1[i] != a2[i]) {
                return ((a1[i] > a2[i]) ? 1 : -1);
            }
        }
        return 0;
    }
}