C31231211111133131211113313331312111113331311331333132233132323222321   >>    C3123121111113313121111331333131211111333131133133313223313232322232   <<    C31231211111133131211113313331312111113331311331333132233132323222323   >>      C31231211111133131211113313331312111113331311331333132233132323222322   >>