C31231211111133131211113313331333132233133313331311331333121122331   >>    C3123121111113313121111331333133313223313331333131133133312112233   <<    C31231211111133131211113313331333132233133313331311331333121122333   >>      C31231211111133131211113313331333132233133313331311331333121122332   >>