UVA11950 Neverland

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=229&page=show_problem&problem=3101 [PDF](https://uva.onlinejudge.org/external/119/p11950.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11950/0a49b3df2dd10a8debbbcc2be1308d7852db118b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11950/e6bc3145fde2067857cad11058368022c68eeb5a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11950/0af077a2b1bed4fc69c6a897f125c1db015a6644.png)