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@foo = ( [0, 1, 2, 3, 4, 5], [0, 1, 2], [0, [ 0, 1, 2, 3 ]] );
my @foo = ( [0, 1, 2, 3, 4, 5], ... } $maxlength[$depth] = $#_ + 1 if($#_ >= '0'.$maxlength[$depth]); }