let array_max_index arr =
  let len_arr = Array.length arr in
  let rec array_max_index' idx result =
    if idx >= len_arr then
      result
    else
      let result = if arr.(result) < arr.(idx) then idx else result in
      array_max_index' (idx + 1) result
  in
  if len_arr <= 0 then
    failwith "array is empty"
  else
    array_max_index' 1 0


let solve in_st =
  let arr = Array.make 10 0 in
  in_st
  |> Stream.iter (fun (a, b, c, d, r) ->
      [a; b; c; d]
      |> List.iter (fun i ->
          let d = if r = "YES" then 1 else -1 in
          arr.(i) <- arr.(i) + d));
  array_max_index arr

let () =
  let n = read_line () |> int_of_string in
  let in_st = Stream.from (fun i ->
    if i >= n then
      None
    else
      read_line ()
      |> fun l -> Scanf.sscanf l
                               "%d %d %d %d %s"
                               (fun a b c d r -> Some(a, b, c, d, r))
  ) in
  solve in_st
  |> string_of_int
  |> print_endline