C111112111133131121133133313331333133313331323133313331333133313223331321211   >>    C11111211113313112113313331333133313331333132313331333133313331322333132121   <<    C111112111133131121133133313331333133313331323133313331333133313223331321213   >>      C111112111133131121133133313331333133313331323133313331333133313223331321212   >>