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 string_1_list_of_string x =
  String.to_seq x
  |> List.of_seq
  |> List.map (String.make 1);;

let rec solve result n sum forth =
  match forth with
  | (-1) -> result
  | _ ->
    let heikin = (float_of_int (sum + forth)) /. (float_of_int n) in
    let result = if (string_of_float heikin
                     |> string_1_list_of_string
                     |> List.rev
                     |> List.hd) = "." then result + 1 else result in
    solve result n sum (forth - 1);;

let () =
  let n = read_line () |> int_of_string in
  let sum = if (n = 1) then 0 else
      read_line () |> split_on_char ' ' |> List.map int_of_string |> List.fold_left (+) 0 in
  solve 0 n sum 100
  |> print_int;
  print_newline ();