UVA912 Live From Mars

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=11&page=show_problem&problem=853 [PDF](https://uva.onlinejudge.org/external/9/p912.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA912/f3ae46c2f048c5be171605f8d1fed4591677882b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA912/958f9658186717e3b45282f9f25df7eafe1fc3fd.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA912/60831b16a3fd64187eb7a5c4c7033a3959be32e4.png)