C31232233133313221211113313331333133313331212111133133313311233211   >>    C3123223313331322121111331333133313331333121211113313331331123321   <<    C31232233133313221211113313331333133313331212111133133313311233213   >>      C31232233133313221211113313331333133313331212111133133313311233212   >>