UVA244 Train Time

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=4&page=show_problem&problem=180 [PDF](https://uva.onlinejudge.org/external/2/p244.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA244/5af12e0a02d6d04603fcecb219d61f50e88dc9a1.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA244/dff31c895edbef1fa41ebcd95aa8f3c2c81d5cee.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA244/6a68790c86df0d741132a3e616288c063654dead.png)