B3311331313231311331322331333131133133313233213231333133313113313232111131   >>    B331133131323131133132233133313113313331323321323133313331311331323211113   <<    B3311331313231311331322331333131133133313233213231333133313113313232111133   >>      B3311331313231311331322331333131133133313233213231333133313113313232111132   >>