viewimage.php?id=20bcc42e&no=24b0d769e1d32ca73cec82fa11d02831da48f5f7e7e334e6e7e5e9c8f8dc62f3e980d405df0725ff140553ea3f8d8943221b390146c6433a94eb12bdd87dabf6


위페이지 마지막줄에


r-la-bl>=r/2가 어떻게 나온거냐