B3311331313231311331322331333132313132313331323223313331323132223132322311   >>    B331133131323131133132233133313231313231333132322331333132313222313232231   <<    B3311331313231311331322331333132313132313331323223313331323132223132322313   >>      B3311331313231311331322331333132313132313331323223313331323132223132322312   >>