%EB%8B%B9%EC%A7%84%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88%E2%93%9D%20%E3%80%90optop10.%EF%BD%83o%D0%BC%E3%80%91%E2%99%AD%EB%8B%B9%EC%A7%84%EC%8A%88%EC%96%BC%20%EB%8B%B9%EC%A7%84op%20%EB%8B%B9%EC%A7%84%EC%95%84%EB%A1%9C%EB%A7%88%20%EB%8B%B9%EC%A7%84%EC%95%88%EB%A7%88%EB%B0%A9%E2%99%9F%EB%8B%B9%EC%A7%84%ED%92%80%EC%8B%B8%EB%A1%B1