UVA610 Street Directions

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=551 [PDF](https://uva.onlinejudge.org/external/6/p610.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA610/dc023c0c25551cf661f6c7dbd2d782c859596909.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA610/cb4b35a47185194603aa80ece22bc8c7112f7ddd.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA610/57705929ae126916e6da5608b75dac2de43dc547.png)