C111112111133131121133133313331333133313331312111133133313331321123222233131   >>    C11111211113313112113313331333133313331333131211113313331333132112322223313   <<    C111112111133131121133133313331333133313331312111133133313331321123222233133   >>      C111112111133131121133133313331333133313331312111133133313331321123222233132   >>