B3311331313231311331322331333132313331322331323133313331313232233132312231   >>    B331133131323131133132233133313231333132233132313331333131323223313231223   <<    B3311331313231311331322331333132313331322331323133313331313232233132312233   >>      B3311331313231311331322331333132313331322331323133313331313232233132312232   >>