%EC%97%AD%EC%82%BC%EB%A3%B8%EC%8B%B8%EB%A1%B1%D0%A7%20%E3%80%90optop10%C2%B8c%CE%98%D0%BC%E3%80%91%E2%9C%91%EC%97%AD%EC%82%BC%EB%A3%B8%EC%8B%B8%EB%A1%B1%E2%9C%BA%EC%97%AD%EC%82%BCop%20%EC%97%AD%EC%82%BC%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88%20%EC%97%AD%EC%82%BCop%E2%9C%82%EC%97%AD%EC%82%BC%EC%95%88%EB%A7%88%EB%B0%A9