in reply to Re^2: a prime bug
in thread a prime bug

Running a script - perl - the tokens make no difference. But if you invoke perl on the command line to read STDIN and paste the script, __END__ makes DATA into STDIN, and you have to type Ctrl-d to close STDIN/DATA. Not a big deal, but that's the difference ;-)

perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'