B3311331313231311331322331333131133133313111333133313331313232233121   >>    B331133131323131133132233133313113313331311133313331333131323223312   <<    B3311331313231311331322331333131133133313111333133313331313232233123   >>      B3311331313231311331322331333131133133313111333133313331313232233122   >>