C13223313311212111133133313331333132313331333133313121111123111   >>    C1322331331121211113313331333133313231333133313331312111112311   <<    C13223313311212111133133313331333132313331333133313121111123113   >>      C13223313311212111133133313331333132313331333133313121111123112   >>