C312322331333132212111133133313331333133312121111112211231333321   >>    C31232233133313221211113313331333133313331212111111221123133332   <<    C312322331333132212111133133313331333133312121111112211231333323   >>      C312322331333132212111133133313331333133312121111112211231333322   >>