%EC%97%AD%EC%82%BC%EC%8A%88%EC%96%BC%E2%95%8A%20%E3%80%90optop10%CB%9B%E2%93%92o%D0%BC%E3%80%91%E2%99%A7%EC%97%AD%EC%82%BC%EC%95%88%EB%A7%88%20%EC%97%AD%EC%82%BC%EB%A7%88%EC%82%AC%EC%A7%80%20%EC%97%AD%EC%82%BC%EC%8A%88%EC%96%BC%20%EC%97%AD%EC%82%BC%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88%E2%9D%84%EC%97%AD%EC%82%BCOP