C32133223331333131133132212111133133313331323223233123121131211   >>    C3213322333133313113313221211113313331333132322323312312113121   <<    C32133223331333131133132212111133133313331323223233123121131213   >>      C32133223331333131133132212111133133313331323223233123121131212   >>