!752

p {
  ImmL<S> a = new ImmL(ll("hello", "world"));
  ImmL<S> b = new ImmL(ll("hello", "world"));
  ImmL<S> c = new ImmL(ll("world", "hello"));
  print("md5/hash: " + a.md5() + "/" + a.hashCode());
  print("md5/hash: " + b.md5() + "/" + b.hashCode());
  print("md5/hash: " + c.md5() + "/" + c.hashCode());
  assertEquals(a, b);
  assertFalse(eq(a, c));
  assertTrue(a.hashCode() == b.hashCode());
  assertFalse(a.hashCode() == c.hashCode());
  assertEquals("hello", a.get(0));
  assertEquals(2, l(a));
  print("ok");
}