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  • bitdays.co.kr/2021/04/17/%ea%b8%80%eb%a1%9c%eb%b2%8c-%ec%a7%88%ec%86%8c-%ea%b7%b9%ec%a0%80%ec%98%a8-%ed%8e%8c%ed%94%84-%ec%8b%9c%ec%9e%a5%ec%97%90%ec%84%9c-%ec%a0%84%eb%9e%b5%ec%a0%81-%eb%8f%99%ed%96%a5-2021-%ea%b3%b5/ (port 80)