C31231211113313112133313331311331333133313331333133312111133133313331312223311   >>    C3123121111331311213331333131133133313331333133313331211113313331333131222331   <<    C31231211113313112133313331311331333133313331333133312111133133313331312223313   >>      C31231211113313112133313331311331333133313331333133312111133133313331312223312   >>