对应输入的每条邮递路线，应输出访问其所有街道至少一次的最短路径的开销。

For each postal route the output should consist of the cost of the minimal tour that visits all streets at least once.

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最短路径开销应按照输入的邮递路线的相应顺序输出。

The minimal tour costs should be output in the order corresponding to the input postal routes.

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最短路径开销应按照输入的邮递路线的相应顺序输出。

The minimal tour costs should be output in the order corresponding to the input postal routes.

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