C11112331312111112111133133313331333132212111133133313331333133311212323231   >>    C1111233131211111211113313331333133313221211113313331333133313331121232323   <<    C11112331312111112111133133313331333132212111133133313331333133311212323233   >>      C11112331312111112111133133313331333132212111133133313331333133311212323232   >>