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  https://www.youtube.com/watch?v=ziw8ApJJNP4&ab_channel=%EC%A1%B8%EB%A6%AC%EC%9A%B0%EB%93%9C%3A%ED%95%B4%EC%99%B8%EC%97%B0%EC%98%88%EB%89%B4%EC%8A%A4%EB%A1%9C%EC%98%88%EC%88%A0%EA%B3%B5%EB%B6%80%ED%95%98%EA%B8%B0 방문 +152