C1333231331121111331333133313331333132313223313331333133311331312121   >>    C133323133112111133133313331333133313231322331333133313331133131212   <<    C1333231331121111331333133313331333132313223313331333133311331312123   >>      C1333231331121111331333133313331333132313223313331333133311331312122   >>