post you are run length encoding in lisp

critique mine pl0x:

(defun rle (str) ;run length encoding
(let ((i 0) c count out)
(while (< i (length str))
(if (eq c (elt str i))
(setq count (1+ count))
(when c
(setq out (append out (list (cons c count)))))
(setq c (elt str i))
(setq count 1))
(setq i (1+ i)))
(when c (setq out (append out (list (cons c count)))))
out))

N LAST I CHEKKED COMPRESSION ALGORITHMS WERE SUPPOSED 2 MAKE THINGS SMALLER, NOT LARGER. DA OUTPUT OF UR PROGRAM IS NEARLY TWICE DA SIZE OF DA INPUT WEN RUN ON UR SOURCE FILE.

EEEEH EEEEEH EEEEEH EEEEEH!