C11112331312111112111133133313331333133311222121111113313331323321111133311   >>    C1111233131211111211113313331333133313331122212111111331333132332111113331   <<    C11112331312111112111133133313331333133311222121111113313331323321111133313   >>      C11112331312111112111133133313331333133311222121111113313331323321111133312   >>