並前往https://hitcon.org/2014/downloads/P1_12_%E8%83%A1%E6%96%87%E5%90%9B%20-%20Guess%20Where%20I%20am-Android%E6%A8%A1%E6%8B%9F%E5%99%A8%E8%BA%B2%E9%81%BF%E7%9A%84%E6%A3%80%E6%B5%8B%E4%B8%8E%E5%BA%94%E5%AF%B9.pdf