C111123313121111121111331333133313331322121111112211232313232311   >>    C11112331312111112111133133313331333132212111111221123231323231   <<    C111123313121111121111331333133313331322121111112211232313232313   >>      C111123313121111121111331333133313331322121111112211232313232312   >>