in reply to How does one construct and access an array of arrays?

So you ai'nt up on your perl data/ref syntaxt , that's ok (you can still get by), but what I'm wondering is why you haven't tried the greatest diagnostic technique known to man?
use Data::Dumper qw( Dumper DumperX ); # I prefer X ## line 42 "My.pm" die DumperX $obj;
Data::Dumper
http://search.cpan.org/doc/GSAR/Data-Dumper-2.101/Dumper.html
DumperX
Identical to the Dumper() function above, but this calls the XSUB implementation. Only available if you were able to compile and install the XSUB extensions in Data::Dumper.

 
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Of all the things I've lost, I miss my mind the most.
perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"