let split_on_char sep s =
  let r = ref [] in
  let j = ref (String.length s) in
  for i = String.length s - 1 downto 0 do
    if String.unsafe_get s i = sep then begin
      r := String.sub s (i + 1) (!j - i - 1) :: !r;
      j := i
    end
  done;
  String.sub s 0 !j :: !r;;

let rec lines n =
  match n with
  | 0 -> ()
  | _ ->
    read_line ()
    |> split_on_char ' ' |> List.map int_of_string
    |> List.sort (fun x y -> - (compare x y))
    |> List.map string_of_int
    |> String.concat " "
    |> print_string; print_newline ();
    lines (n - 1);;

let () =
  read_line () |> int_of_string |> lines;;