C31232233133313221211113313331333133313331212111112111133221312111   >>    C3123223313331322121111331333133313331333121211111211113322131211   <<    C31232233133313221211113313331333133313331212111112111133221312113   >>      C31232233133313221211113313331333133313331212111112111133221312112   >>