C31232233133313221211113313331333133313331212111133133313121233331   >>    C3123223313331322121111331333133313331333121211113313331312123333   <<    C31232233133313221211113313331333133313331212111133133313121233333   >>      C31232233133313221211113313331333133313331212111133133313121233332   >>