(defvar A)
(defvar B)
(defvar temp)
(setq temp (read-line))
(setq temp (read-from-string (concatenate 'string "(" temp ")" )) )
(setq A (nth 0 temp))
(setq B (nth 1 temp))

(loop for i from A to B do
 (if (= (mod i 3) 0) (format 't "~d~%" i)
 (progn
     (setq temp (princ-to-string i))
     (loop for j from 0 to (- (length temp) 1) do
        (if (eq (aref temp j ) #\3) (format 't "~d~%" i)))
 )
 )
)