UVA11280 Flying to Fredericton

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2255 [PDF](https://uva.onlinejudge.org/external/112/p11280.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11280/b8d8f6d90f912f858039e802a761745007013a34.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11280/4628e05b8880866a9c7a3ea3dc3e4d533e10b298.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11280/322ce5ac3127bb43a3a52b6d6e144d4dac7f0cf7.png)