C312322331333132212111133133313331333133312121111331311331312111113232223231   >>    C31232233133313221211113313331333133313331212111133131133131211111323222323   <<    C312322331333132212111133133313331333133312121111331311331312111113232223233   >>      C312322331333132212111133133313331333133312121111331311331312111113232223232   >>