let main x =
  let x' = float_of_int x in
  let rec loop i y =
    if x' <= y then
      print_int i
    else
      loop (i + 1) (float_of_int (int_of_float (y *. 0.01)))
  in
  loop 0 (float_of_int 100);;

Scanf.sscanf (read_line ()) "%d" (fun x ->
    main x
);;
