%EA%B0%80%ED%8F%89%EC%85%94%EC%B8%A0%EB%A3%B8%E3%83%8D%20%E3%80%90optop10%C2%B8c%CE%98%EF%BD%8D%E3%80%91%20%EA%B0%80%ED%8F%89%EC%8A%88%EC%96%BC%E2%9D%88%EA%B0%80%ED%8F%89OP%20%EA%B0%80%ED%8F%89%EB%A7%88%EC%82%AC%EC%A7%80%E2%99%A6%EA%B0%80%ED%8F%89%EC%98%A4%ED%94%BC%20%EA%B0%80%ED%8F%89%EC%98%A4%ED%94%BC