http://science6.2ch.net/test/read.cgi/math/1188000000/936 2009/01/03 04:21:09
http://science6.2ch.net/test/read.cgi/math/1226981666/195 2009/01/03 04:21:25
http://science6.2ch.net/test/read.cgi/math/1211579282/662 2009/01/03 04:21:49
http://science6.2ch.net/test/read.cgi/math/1223309910/17 2009/01/03 04:22:02
http://science6.2ch.net/test/read.cgi/math/1224160604/212 2009/01/03 04:22:13
http://science6.2ch.net/test/read.cgi/math/1229954752/127 2009/01/03 04:22:26