C13223313311212111133133313331333132313331333133313331333133313113231211   >>    C1322331331121211113313331333133313231333133313331333133313331311323121   <<    C13223313311212111133133313331333132313331333133313331333133313113231213   >>      C13223313311212111133133313331333132313331333133313331333133313113231212   >>