C31232233133313221211113313331333133313331212111133133112213231211   >>    C3123223313331322121111331333133313331333121211113313311221323121   <<    C31232233133313221211113313331333133313331212111133133112213231213   >>      C31232233133313221211113313331333133313331212111133133112213231212   >>