C31232233133313221211113313331333133313331212111133133313133222211   >>    C3123223313331322121111331333133313331333121211113313331313322221   <<    C31232233133313221211113313331333133313331212111133133313133222213   >>      C31232233133313221211113313331333133313331212111133133313133222212   >>