%EB%B6%80%EC%B2%9C%EC%8A%88%EC%96%BC%E2%99%AD%20%E3%80%90optop10%CB%9Bc%D0%BE%EF%BC%AD%E3%80%91%E2%9D%81%EB%B6%80%EC%B2%9C%ED%85%8C%EB%9D%BC%ED%94%BC%E2%9C%94%EB%B6%80%EC%B2%9Cop%20%EB%B6%80%EC%B2%9C%EC%95%88%EB%A7%88%20%EB%B6%80%EC%B2%9C%EC%95%88%EB%A7%88%EB%B0%A9%E2%9C%A7%EB%B6%80%EC%B2%9C%ED%85%8C%EB%9D%BC%ED%94%BC