C11112331312111112111133133313331333132323133313331333112121111113311   >>    C1111233131211111211113313331333133313232313331333133311212111111331   <<    C11112331312111112111133133313331333132323133313331333112121111113313   >>      C11112331312111112111133133313331333132323133313331333112121111113312   >>