C13223313311212111133133313331333132333133313331333133333233313221221   >>    C1322331331121211113313331333133313233313331333133313333323331322122   <<    C13223313311212111133133313331333132333133313331333133333233313221223   >>      C13223313311212111133133313331333132333133313331333133333233313221222   >>