C11112331312111112111133133313331333132323213331333133313122121111113323331   >>    C1111233131211111211113313331333133313232321333133313331312212111111332333   <<    C11112331312111112111133133313331333132323213331333133313122121111113323333   >>      C11112331312111112111133133313331333132323213331333133313122121111113323332   >>