B3311331313231311331322331333131133132313331313232233132322331121   >>    B331133131323131133132233133313113313231333131323223313232233112   <<    B3311331313231311331322331333131133132313331313232233132322331123   >>      B3311331313231311331322331333131133132313331313232233132322331122   >>