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  • bitdays.co.kr/2022/01/17/%ec%83%88%eb%a1%9c%ec%9a%b4-%eb%b3%b4%ea%b3%a0%ec%84%9c%ec%97%90-%eb%94%b0%eb%a5%b4%eb%a9%b4-%ec%98%a4%eb%94%94%ec%98%a4-%eb%b9%84%eb%94%94%ec%98%a4-%ec%88%98%ec%8b%a0%ea%b8%b0-avr-%ec%8b%9c/ (port 80)