C312322331333132212111133133313331333133312121111121111133113231   >>    C31232233133313221211113313331333133313331212111112111113311323   <<    C312322331333132212111133133313331333133312121111121111133113233   >>      C312322331333132212111133133313331333133312121111121111133113232   >>