C31231211111133131211113313331333133313331323223313331333133313331333233233311   >>    C3123121111113313121111331333133313331333132322331333133313331333133323323331   <<    C31231211111133131211113313331333133313331323223313331333133313331333233233313   >>      C31231211111133131211113313331333133313331323223313331333133313331333233233312   >>