C312322331333132212111133133313331333133312121111133311211312233231   >>    C31232233133313221211113313331333133313331212111113331121131223323   <<    C312322331333132212111133133313331333133312121111133311211312233233   >>      C312322331333132212111133133313331333133312121111133311211312233232   >>