class HoughComparator implements java.util.Comparator<Integer> {
  int[] accumulator;

  public HoughComparator(int[] accumulator) {
    this.accumulator = accumulator;
  }
    
  @Override
  public int compare(Integer l1, Integer l2) {
    if (accumulator[l1] > accumulator[l2] || (accumulator[l1] == accumulator[l2] && l1 < l2))
      return -1;
    return 1;
  }
}