B3311331313231311331322331333132313132313331323223313232213231323321   >>    B331133131323131133132233133313231313231333132322331323221323132332   <<    B3311331313231311331322331333132313132313331323223313232213231323323   >>      B3311331313231311331322331333132313132313331323223313232213231323322   >>