B3311331313231311331322331333132313132313331323223313232233113231   >>    B331133131323131133132233133313231313231333132322331323223311323   <<    B3311331313231311331322331333132313132313331323223313232233113233   >>      B3311331313231311331322331333132313132313331323223313232233113232   >>