C111112111133131121133133313331333133313331322121111331333133313331311311232311   >>    C11111211113313112113313331333133313331333132212111133133313331333131131123231   <<    C111112111133131121133133313331333133313331322121111331333133313331311311232313   >>      C111112111133131121133133313331333133313331322121111331333133313331311311232312   >>