(defun split (x str)
  (let ((pos (search x str))
        (size (length x)))
    (if pos
      (cons (subseq str 0 pos)
            (split x (subseq str (+ pos size))))
      (list str))))
      
(setq x (split " " (read-line)))

(setq a (parse-integer (first x)))
(setq b (parse-integer (second x)))

(setq d (floor b a))
(setq m (mod b a))

(if (> m 0)(setq d (+ d 1))(setq d d))
(format t d)