!752

p {
  assertEquals("5", structure(5));
  assertEquals("5L", structure(5L));
  assertEquals("[5, 5L]", structure(ll(5, 5L)));
  
  unstructure_debug = true;
  L l = cast unstructure("[5, 5L]");
  assertEquals("[5, 5L]", structure(l));
  assertEquals(5, (int) l.get(0));
  assertEquals(5L, (long) l.get(1));
  print("ok");
}