C31231211113313121211113313331333133313311211331333133313331331123232111   >>    C3123121111331312121111331333133313331331121133133313331333133112323211   <<    C31231211113313121211113313331333133313311211331333133313331331123232113   >>      C31231211113313121211113313331333133313311211331333133313331331123232112   >>