C31231211111133131211113313331312111113331311331333132233132321   >>    C3123121111113313121111331333131211111333131133133313223313232   <<    C31231211111133131211113313331312111113331311331333132233132323   >>      C31231211111133131211113313331312111113331311331333132233132322   >>