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在西方，星期五和数字13都代表着坏运气，两个不幸的个体最后结合成超级不幸的一天。所以，不管哪个月的十三日又恰逢星期五就叫“黑色星期五”。 输入： 年份 输出： 判断该年是否包含黑色星期五，如包含，给出具体日期-In the West, Friday and the number 13 represents the bad luck the last two unfortunate individuals together to form super-sad day. Therefore, no matter what the occasion of the 13th month on Friday, called " Black Friday." Input: Year Output: Black Friday to determine whether to include the year, such as inclusion, is given a specific date
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