C31231211111133131211113313331312111113331311331333133313232233133313221331   >>    C3123121111113313121111331333131211111333131133133313331323223313331322133   <<    C31231211111133131211113313331312111113331311331333133313232233133313221333   >>      C31231211111133131211113313331312111113331311331333133313232233133313221332   >>