C13223313311212111133133313331333133313123223313231333133313112211233231   >>    C1322331331121211113313331333133313331312322331323133313331311221123323   <<    C13223313311212111133133313331333133313123223313231333133313112211233233   >>      C13223313311212111133133313331333133313123223313231333133313112211233232   >>