C13223313311212111133133313331333131212111113331333131323123232311   >>    C1322331331121211113313331333133313121211111333133313132312323231   <<    C13223313311212111133133313331333131212111113331333131323123232313   >>      C13223313311212111133133313331333131212111113331333131323123232312   >>