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西山红云飞,士兵瞄准,回营。

张得了22分,李得了47分。

我成绩比你好,一个接一个起来你就惨了;

美女黛西轻笑一声,又让子弹飞了起来。

肯定是des,毫无疑问。关键是22和17。根据上次的经验,22对应35635,那么17就是65312。

但是试了一下,发现这两个都不是钥匙。

我又注意到了顺序,试了一下65312-35635=29677。

试着找到是关键,得到xxaqdl(p25-12-b string)U2 fsdgvkx 199 xcqgbzg 3 mj 1 nuwuuupclqbs 9 lek xppe=

里面有一段p25-12,让人想到课本。我发现第25页第12行是0100011。

可以得到明文:解密U2 fsdgvkx 199 xcqgbzg 3 mj 1 nuwuupclqbs 9 lek xppe=你很厉害。

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