C31231211113313121211113313331333133313311211331333133313331333132233131213111   >>    C3123121111331312121111331333133313331331121133133313331333133313223313121311   <<    C31231211113313121211113313331333133313311211331333133313331333132233131213113   >>      C31231211113313121211113313331333133313311211331333133313331333132233131213112   >>