B3311331313231311331322331333132313331323131323223313233313232233131323132311   >>    B331133131323131133132233133313231333132313132322331323331323223313132313231   <<    B3311331313231311331322331333132313331323131323223313233313232233131323132313   >>      B3311331313231311331322331333132313331323131323223313233313232233131323132312   >>