!7

p {
  final L<JTextField> l = repF(7, f jtextfield);
  final JTextField lblOutput = jdisabledtextfield();
  showForm(flattenArray2("In", "Out", l, "", r-thread {
    loading {
      L<S> items = map getText(dropLast(l));
      while (l(items) > 2 && empty(last(items)) && empty(nextToLast(items))) truncateList(items, l(items)-2);
      O f = quickSolveToFunction(items);
      S text = "Not solved";
      if (f != null)
        text = str(callF(f, getText(last(l))));
      setText(lblOutput, text);
    }
  }));
}