B3311331313231311331322331333132313132313331323223313232213331323132233321   >>    B331133131323131133132233133313231313231333132322331323221333132313223332   <<    B3311331313231311331322331333132313132313331323223313232213331323132233323   >>      B3311331313231311331322331333132313132313331323223313232213331323132233322   >>