viewimage.php?id=3db5c935ecd12bf4&no=24b0d769e1d32ca73ded8efa11d02831ee99512b64ee64d67099c324c4044eaa2e25412bb15a7625070ada220eaf364f8e6fecdb37c1fd09d9e973fbbb441a5c828df108737c5680005cb5a204cdb4c7f059eb


덧셈정리 쓰는게 제일 빠른듯

- dc official App