%EC%A7%84%EC%A3%BC%EC%95%88%EB%A7%88%E3%8F%96%20%E3%80%90optop10%CB%9B%EF%BD%83%EF%BC%AF%EF%BD%8D%E3%80%91%20%EC%A7%84%EC%A3%BCop%20%EC%A7%84%EC%A3%BC%ED%85%8C%EB%9D%BC%ED%94%BC%20%EC%A7%84%EC%A3%BC%EC%95%88%EB%A7%88%EB%B0%A9%E2%99%80%EC%A7%84%EC%A3%BC%ED%85%8C%EB%9D%BC%ED%94%BC%E2%9C%B2%EC%A7%84%EC%A3%BCOP