$VAR1 = {
          '6' => [
                   '12',
                   '18',
                   '24'
                 ],
          '18' => [
                    '24'
                  ],
          '0' => [
                   '6',
                   '12',
                   '18',
                   '24'
                 ],
          '12' => [
                    '18',
                    '24'
                  ]
        };