module String = struct
  include String

  (* @since 4.02.0 *)
  let init n f =
    let s = String.create n in
    for i = 0 to n - 1 do
      s.[i] <- f i
    done;
    s

  let rev str =
    let n = String.length str in
    init n (fun i -> str.[n - 1 - i])

  let to_list str =
    let rec doit i acc =
      if i < 0 then acc
      else doit (i - 1) (String.get str i :: acc) in
    doit (String.length str - 1) []

  let fold_left f init str =
    let n = String.length str - 1 in
    let rec doit i acc =
      if i > n then acc
      else doit (i + 1) (f acc str.[i]) in
    doit 0 init

end

let () =
  read_line ()
  |> String.rev
  |> String.map (fun c -> if c = '<' then '>' else '<')
  |> print_endline