20%EC%82%B4 %EC%95%84%ED%8C%8C%ED%8A%B8 %EB%B0%B0%EA%B4%80 %EB%B0%8F %EC%A0%84%EC%84%A0 %EA%B5%90%EC%B2%B4 %EB%AC%B8%EC%9D%98%EB%93%9C%EB%A6%BD%EB%8B%88%EB%8B%A4.