!7

p {
  IterableIterator<S> itInput = (IterableIterator) iteratorRepF(5, fg0(f struct, f aRandomStringList));
  L<IterableIterator<S>> splitIt = splitIterator(2, itInput);
  pnlStruct(iteratorToList(it_observePrefix(first(splitIt)));
  print();
  pnlStruct(iteratorToList(it_observeSuffix(second(splitIt)));
}