B3311331313231311331322331333132313232233132313133313331311331323132323221   >>    B331133131323131133132233133313231323223313231313331333131133132313232322   <<    B3311331313231311331322331333132313232233132313133313331311331323132323223   >>      B3311331313231311331322331333132313232233132313133313331311331323132323222   >>