%EA%B4%91%EC%A7%84op%E3%8E%B6%20%E3%80%90optop10%CB%9Bc%CE%98%EF%BC%AD%E3%80%91%E2%99%A9%EA%B4%91%EC%A7%84OP%20%EA%B4%91%EC%A7%84%EA%B1%B4%EB%A7%88%E2%9C%94%EA%B4%91%EC%A7%84%EB%A3%B8%EC%8B%B8%EB%A1%B1%E2%9C%B6%EA%B4%91%EC%A7%84%ED%85%8C%EB%9D%BC%ED%94%BC%E2%9D%86%EA%B4%91%EC%A7%84OP