C13223313311212111133133313331333131212111113331333131121113232311   >>    C1322331331121211113313331333133313121211111333133313112111323231   <<    C13223313311212111133133313331333131212111113331333131121113232313   >>      C13223313311212111133133313331333131212111113331333131121113232312   >>