C31232233133313221211113313331333133313331212111133133311312111211   >>    C3123223313331322121111331333133313331333121211113313331131211121   <<    C31232233133313221211113313331333133313331212111133133311312111213   >>      C31232233133313221211113313331333133313331212111133133311312111212   >>