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URL2: https://medium.com/@busan8268/%EB%B6%80%EC%82%B0%EC%B6%9C%EC%9E%A5%EB%A7%88%EC%82%AC%EC%A7%80-%EB%B6%80%EC%82%B0%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88-30%EB%B6%84%EC%9D%B4%EB%82%B4%EB%8F%84%EC%B0%A9-%EC%84%A0%EC%9E%85%EA%B8%88no-2cb9a3a9d5a0
