通过使用SSL，我们可以确保在交换任何应用程序数据前，能识别服务器端并建立安全通道。
By using SSL, we ensure that the server-side is identified and a secure channel established before any application data is exchanged.
由于所有应用程序数据通过对称密钥技术进行加密后才进行交换，因此没有提供不可否认特性。
There is no provision for non-repudiation as all application data that is exchanged has been encrypted using symmetric key technology.
还有一种方法是求数列的逆序数，因为根据题目所给条件，逆序数就是交换次数，代码一并贴出。
Then print a single line containing the minimal number of swaps of adjacent numbers that are necessary to sort the given sequence. Terminate the output for the scenario with a blank line.
还有一种方法是求数列的逆序数，因为根据题目所给条件，逆序数就是交换次数，代码一并贴出。
Then print a single line containing the minimal number of swaps of adjacent numbers that are necessary to sort the given sequence. Terminate the output for the scenario with a blank line.
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