%EC%9D%B4%EC%B2%9C%EA%B1%B4%EB%A7%88%E2%9C%A7%20%E3%80%90optop10%CB%9B%EF%BC%A30%EF%BC%AD%E3%80%91%E2%9C%87%EC%9D%B4%EC%B2%9COP%E2%9D%88%EC%9D%B4%EC%B2%9C%EC%98%A4%ED%94%BC%20%EC%9D%B4%EC%B2%9C%EC%95%88%EB%A7%88%E2%97%8E%EC%9D%B4%EC%B2%9C%ED%9C%B4%EA%B2%8C%ED%85%94%E2%9C%8F%EC%9D%B4%EC%B2%9C%EC%95%84%EB%A1%9C%EB%A7%88