B3311331313231311331322331333132313331323131323223313232211311111   >>    B331133131323131133132233133313231333132313132322331323221131111   <<    B3311331313231311331322331333132313331323131323223313232211311113   >>      B3311331313231311331322331333132313331323131323223313232211311112   >>