!752

p {
  S s = structure(new bool[] {false, true, false, true, false, true, false, true, false, false, false, false, true, true, true, true, true});
  print(s);
  bool[] b = (bool[]) unstructure(s);
  S s2 = structure(b);
  assertEquals(s, s2);
  print("ok");
}