C31231211111133131211113313331333133313331323223313331333133313331311332232311   >>    C3123121111113313121111331333133313331333132322331333133313331333131133223231   <<    C31231211111133131211113313331333133313331323223313331333133313331311332232313   >>      C31231211111133131211113313331333133313331323223313331333133313331311332232312   >>