C32133223331333131133132212111133133313331333132311311312331232223121   >>    C3213322333133313113313221211113313331333133313231131131233123222312   <<    C32133223331333131133132212111133133313331333132311311312331232223123   >>      C32133223331333131133132212111133133313331333132311311312331232223122   >>