C31231211111133131211113313331312111113331311331333132233131133223321   >>    C3123121111113313121111331333131211111333131133133313223313113322332   <<    C31231211111133131211113313331312111113331311331333132233131133223323   >>      C31231211111133131211113313331312111113331311331333132233131133223322   >>