C31231211113313121211113313331333133313331213331333133313231122112112321111   >>    C3123121111331312121111331333133313331333121333133313331323112211211232111   <<    C31231211113313121211113313331333133313331213331333133313231122112112321113   >>      C31231211113313121211113313331333133313331213331333133313231122112112321112   >>