C31231211113313121211113313331333133313311211331333133313331311331122111   >>    C3123121111331312121111331333133313331331121133133313331333131133112211   <<    C31231211113313121211113313331333133313311211331333133313331311331122113   >>      C31231211113313121211113313331333133313311211331333133313331311331122112   >>