open Num

let solve s_arr =
  let n1 = num_of_int 1
  and n100 = num_of_int 100 in

  let rec solve' idx rest_len rest_maru =
    if (idx < len_s_arr) then (
      Printf.printf "%.7f\n" @@ float_of_num @@ rest_maru // rest_len */ n100;
      let rest_maru' = if s_arr.(idx) = 1 then rest_maru -/ n1 else rest_maru in
      solve' (idx + 1) (rest_len -/ n1) rest_maru'
    )
  and len_s_arr = Array.length s_arr
  and cnt_maru =  Array.fold_left ( + ) 0 s_arr |> num_of_int in
  solve' 0 (num_of_int len_s_arr) cnt_maru

let () =
  let s = read_line () in
  let len_s = String.length s in
  let s_arr = Array.init len_s (fun i -> match s.[i] with | 'o' -> 1 | _ -> 0) in
  solve s_arr