UVA11157 Dynamic Frog

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=23&page=show_problem&problem=2098 [PDF](https://uva.onlinejudge.org/external/111/p11157.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11157/6ce5d85196c61c8db81f79de9c715bc1ccf6d1da.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11157/0610f22716ca878ae6e564bbb27b74dcc7016bab.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11157/3f2dc91c5a4c9ab088b1ed0bc0ccbd3dcf1a9375.png)