C13223313311212111133133313331333131212111113331333131211113311312121   >>    C1322331331121211113313331333133313121211111333133313121111331131212   <<    C13223313311212111133133313331333131212111113331333131211113311312123   >>      C13223313311212111133133313331333131212111113331333131211113311312122   >>