B3311331313231311331322331333131133131323131133133313232233131133132211   >>    B331133131323131133132233133313113313132313113313331323223313113313221   <<    B3311331313231311331322331333131133131323131133133313232233131133132213   >>      B3311331313231311331322331333131133131323131133133313232233131133132212   >>