static L<Rect> ocr_mergeOverlappingY_plusPercent(L<Rect> l, float percent) {
  l = cloneList(l);
  bool change;
  do {
    change = false;
    for i over l:
      for (int j = i+1; j < l(l); j++) {
        Range a = growRangeInPercent(rectYRange(l.get(i)), percent);
        Range b = growRangeInPercent(rectYRange(l.get(j)), percent);
        if (rangesOverlap(a, b)) {
          l.set(i, mergeRects(l.get(i), l.get(j)));
          l.remove(j--);
          change = true;
        }
      }
  } while (change);
  ret l;
}