let () =
  let s = read_line () in
  let n = String.length s in
  let horizontal_ellipsis_p i = i + 2 < n &&
    Char.code s.[i] = 0xe2 && Char.code s.[i+1] = 0x80 && Char.code s.[i+2] = 0xa6 in
  let rec aux i z =
    if not (horizontal_ellipsis_p i) then i, z
    else aux (i + 3) (z + 1) in
  let rec doit i x =
    if i = n then x
    else if not (horizontal_ellipsis_p i) then doit (i + 1) x
    else
      let i, z = aux i 0 in
      doit i (max x z) in
  doit 0 0 |> Printf.printf "%d\n"