B3311331313231311331322331333132313331322331323133313232223132323331   >>    B331133131323131133132233133313231333132233132313331323222313232333   <<    B3311331313231311331322331333132313331322331323133313232223132323333   >>      B3311331313231311331322331333132313331322331323133313232223132323332   >>