%EC%B0%BD%EC%9B%90%EC%95%88%EB%A7%88%CE%A9%20%E3%80%90optop10%CB%9B%EF%BC%A30%EF%BD%8D%E3%80%91%E2%9C%B4%EC%B0%BD%EC%9B%90%EC%B6%9C%EC%9E%A5%EC%98%A4%ED%94%BC%20%EC%B0%BD%EC%9B%90%EC%85%94%EC%B8%A0%EB%A3%B8%20%EC%B0%BD%EC%9B%90%EB%A0%88%EA%B9%85%EC%8A%A4%EB%A3%B8%E2%9D%85%EC%B0%BD%EC%9B%90%EC%95%84%EB%A1%9C%EB%A7%88%E2%9C%98%EC%B0%BD%EC%9B%90%EC%95%88%EB%A7%88%EB%B0%A9