C111112111133131121133133313331333133313331323321111331311332321   >>    C11111211113313112113313331333133313331333132332111133131133232   <<    C111112111133131121133133313331333133313331323321111331311332323   >>      C111112111133131121133133313331333133313331323321111331311332322   >>