C111112111133131121133133313331333133313331322121111331311211211   >>    C11111211113313112113313331333133313331333132212111133131121121   <<    C111112111133131121133133313331333133313331322121111331311211213   >>      C111112111133131121133133313331333133313331322121111331311211212   >>