B3311331313231311331322331333132313132313331323223313231121133132323311   >>    B331133131323131133132233133313231313231333132322331323112113313232331   <<    B3311331313231311331322331333132313132313331323223313231121133132323313   >>      B3311331313231311331322331333132313132313331323223313231121133132323312   >>