https://careers.bloomberg.com/job/search :-)
my $aref = [1,2,[3,4,5,[6,7] ] ];
You can do print $aref->[2][3][1];
which yields: 7
Or my @array = (1,2,[3,4,5,[6,7] ] );
print $array[2][3][1];
7 use v5.36;
will enable the feature.