$str1 - 52 bytes
$VAR1 = \'abcxyzabcxyzabcxyzabcxyz';

$h - 16 bytes
$VAR1 = \undef;

$h1 - 230 bytes
$VAR1 = \{
            'y' => 'xyzxyzxyzxyzxyz',
            'x' => 'abcabcabcabcabc'
          };

$l1 - 132 bytes
$VAR1 = \[
            'abcdefghi',
            'stuvwxyz'
          ];

$str - 52 bytes
$VAR1 = \undef;

$l - 16 bytes
$VAR1 = \undef;