C111112111133131121133133313331333133313331323133313331333133313211231213331   >>    C11111211113313112113313331333133313331333132313331333133313331321123121333   <<    C111112111133131121133133313331333133313331323133313331333133313211231213333   >>      C111112111133131121133133313331333133313331323133313331333133313211231213332   >>