(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((n (read))
         (g (read))
         (v (read))
         (a (floor (* (floor n 5) g) v))
         (b (mod (* (floor n 5) g) v)))
    (format t "~d." a)
    (dotimes (_ 12)
      (setq b (* b 10))
      (format t "~d" (floor b v))
      (setq b (mod b v)))
    (format t "~%")))

(main)