%EC%95%88%EB%8F%99%EC%8A%88%EC%96%BC%E3%8E%B6%20%E3%80%90optop10.%EF%BD%83%EF%BC%AF%D0%BC%E3%80%91%E2%9C%A1%EC%95%88%EB%8F%99%EC%95%84%EB%A1%9C%EB%A7%88%E2%9D%88%EC%95%88%EB%8F%99%ED%92%80%EC%8B%B8%EB%A1%B1%20%EC%95%88%EB%8F%99%ED%9B%84%EB%B6%88%EC%B6%9C%EC%9E%A5%20%EC%95%88%EB%8F%99%ED%9B%84%EB%B6%88%EC%B6%9C%EC%9E%A5%E2%9C%BC%EC%95%88%EB%8F%99%EC%98%A4%ED%94%BC