UVA12715 Watching the Kangaroo

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=823&page=show_problem&problem=4453 [PDF](https://uva.onlinejudge.org/external/127/p12715.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12715/4865ed06fbed954923bc2621a04b44d3effe5698.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12715/2e607632b9bdc7b9f1013ce7f02d7b482f977833.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12715/35347604a4e5d5a10f9ec92d7b54c2d393e8355d.png)