C11112331312111112111133133313331333133313331333133313331333133311331233131   >>    C1111233131211111211113313331333133313331333133313331333133313331133123313   <<    C11112331312111112111133133313331333133313331333133313331333133311331233133   >>      C11112331312111112111133133313331333133313331333133313331333133311331233132   >>