https://purengom.com/2008/05/02/%eb%8b%8c%ed%85%90%eb%8f%84-%ec%9c%84wii-%eb%8f%99%ec%8b%9c-%eb%b0%9c%eb%a7%a4-%ed%83%80%ec%9d%b4%ed%8b%80%ec%9d%b4-%eb%84%88%eb%ac%b4-%ec%a0%81%eb%8b%a4/