C13223313311212111133133313331333132333133313331333133323221121   >>    C1322331331121211113313331333133313233313331333133313332322112   <<    C13223313311212111133133313331333132333133313331333133323221123   >>      C13223313311212111133133313331333132333133313331333133323221122   >>