B3311331313231311331322331333132313231333131323223313232213331323323221   >>    B331133131323131133132233133313231323133313132322331323221333132332322   <<    B3311331313231311331322331333132313231333131323223313232213331323323223   >>      B3311331313231311331322331333132313231333131323223313232213331323323222   >>