%EC%98%A4%ED%94%BC%ED%88%AC%EB%8D%B0%EC%9D%B4%ED%9C%B4%EA%B2%8C%ED%85%94%E2%94%9D%20%E3%80%90optop9%C2%B8%E2%93%92o%EF%BC%AD%E3%80%91%E2%9C%81%EC%98%A4%ED%94%BC%ED%88%AC%EB%8D%B0%EC%9D%B4OP%E2%9C%A1%EC%98%A4%ED%94%BC%ED%88%AC%EB%8D%B0%EC%9D%B4%EC%A3%BC%EC%86%8C%E2%99%98%EC%98%A4%ED%94%BC%ED%88%AC%EB%8D%B0%EC%9D%B4%EC%97%85%EC%86%8C%E2%9C%A2%EC%98%A4%ED%94%BC%ED%88%AC%EB%8D%B0%EC%9D%B4%EA%B1%B4%EB%A7%88%20%EC%98%A4%ED%94%BC%ED%88%AC%EB%8D%B0%EC%9D%B4%EC%9C%A0%ED%9D%A5