B3311331313231311331322331333132313132313331323223313223313133313232311   >>    B331133131323131133132233133313231313231333132322331322331313331323231   <<    B3311331313231311331322331333132313132313331323223313223313133313232313   >>      B3311331313231311331322331333132313132313331323223313223313133313232312   >>