$ perl -d -e'print splice@l,rand@l,1for@l=<>' < test
Default die handler restored.

Loading DB routines from perl5db.pl version 1.07
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

main::(-e:1):   print splice@l,rand@l,1for@l=<>
  DB<1> c
4
5
1
3
Attempt to free unreferenced scalar at -e line 1, <> line 5.
Bus error (core dumped)


##</code><code>##

Attempt to free unreferenced scalar at /usr/local/perl/lib/5.6/perl5db.pl line 1447, <IN> line 7.