C132233133112121111331333133313331333132313223331211111311212311   >>    C13223313311212111133133313331333133313231322333121111131121231   <<    C132233133112121111331333133313331333132313223331211111311212313   >>      C132233133112121111331333133313331333132313223331211111311212312   >>