C31231211111133131211113313331312111113331311331322333133313232233321   >>    C3123121111113313121111331333131211111333131133132233313331323223332   <<    C31231211111133131211113313331312111113331311331322333133313232233323   >>      C31231211111133131211113313331312111113331311331322333133313232233322   >>