!perl fred.pl
$VAR1 = [
          [
            '2',
            '3',
            '4'
          ],
          [
            '18353',
            '46775',
            '81302'
          ],
          [
            '14878',
            '42601',
            '67542'
          ],
          [
            '911',
            '1564',
            '1879'
          ]
        ];