C111112111133131121133133313331333133313331323133313331122213231   >>    C11111211113313112113313331333133313331333132313331333112221323   <<    C111112111133131121133133313331333133313331323133313331122213233   >>      C111112111133131121133133313331333133313331323133313331122213232   >>