. https://namu.wiki/w/%ec%97%90%ec%9d%b4%eb%a6%ac%ec%96%b8%20%eb%8c%80%20%ed%94%84%eb%a0%88%eb%8d%b0%ed%84%b0(%ec%ba%a1%ec%bd%a4) . https://namu.wiki/w/%ec%97%90%ec%9d%b4%eb%a6%ac%ec%96%b8%20%eb%8c%80%20%ed%94%84%eb%a0%88%eb%8d%b0%ed%84%b0(%ec%ba%a1%ec%bd%a4)
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