UVA12133 Walk

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=243&page=show_problem&problem=3285 [PDF](https://uva.onlinejudge.org/external/121/p12133.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12133/684662d57e40c78bb9905b4fa14a461552f4dbd6.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12133/c6e93344da896d1685a0ac5cdc550076e99a63c2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12133/1b245a6ee6628df027203dd0c5d3094b750166a7.png)