B3311331313231311331322331333132313231333131323223313133313331313232233221   >>    B331133131323131133132233133313231323133313132322331313331333131323223322   <<    B3311331313231311331322331333132313231333131323223313133313331313232233223   >>      B3311331313231311331322331333132313231333131323223313133313331313232233222   >>