B3311331313231311331322331333132313231333131323223313232213331311311   >>    B331133131323131133132233133313231323133313132322331323221333131131   <<    B3311331313231311331322331333132313231333131323223313232213331311313   >>      B3311331313231311331322331333132313231333131323223313232213331311312   >>