#!perl -pl s/.zz//g;s/FB/G/g;s/ /a*/g;$_=(aaFaBFaaFBaFaaG x$=)=~$_?1+$-[0].$".$+[0]:'';s/3 5$/9 10/
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
download
return to the top page