C111123313121111121111331333133313331333133313331122112323311311   >>    C11112331312111112111133133313331333133313331333112211232331131   <<    C111123313121111121111331333133313331333133313331122112323311313   >>      C111123313121111121111331333133313331333133313331122112323311312   >>