!7

static L<S> l = splitAtSpace("one two three four five six seven eight nine ten!");
static LL<S> perm;

p {
  L<S> ll = l;
  print("\nPermutating: " + ll);
  time "Permutating" { perm = allPermutations(ll); }
  print("Have " + n(perm, "permutation"));
  assertEquals(factorial(l(ll)), l(perm));
  assertEquals(l(new HashSet(perm)), l(perm));
  print("\nOK (probably)");
  //pnl(perm);
}