ær&f?t???o&p-&ladr--nx?sens--nx??q-nagv--nx?r-asns--nx?s-kjks--nx?v-murb--nx?w-&anr&f--nx?t--nx??ublk--nx???ppol?q&0-t&baol--nx?soum--nx?veib--nx??x-&ipphl--nx?r&embh--nx?imph--nx???y-tinks--nx??r&f-atsr--nx?g-&an&ms--nx?nd--nx??e&drf--nx?ngs--nx??murs--nx?netl--nx?olmb--nx?sorr--nx??h-&a&lms--nx?yrf--nx??emjt--nx??i&-&lboh--nx?rsir--nx?y&d&ar--nx?na--nx??ksa--nx?lem--nx?r&ul--nx?yd--nx????stu??j-&drav--nx?rolf--nx?sdav--nx??kua?l-&drojf--nx?lares--nx??m-tlohr--nx?n-esans--nx?olf?p-sdnil--nx?s-l...

        return inputSet.keySet().equals(that.inputSet.keySet());
      }
      return super.equals(obj);
    }

    @Override
    public int hashCode() {
      /*
       * The sum of the sums of the hash codes in each subset is just the sum of
       * each input element's hash code times the number of sets that element
       * appears in. Each element appears in exactly half of the 2^n sets, so:
       */