UVA12356 Army Buddies

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=278&page=show_problem&problem=3778 [PDF](https://uva.onlinejudge.org/external/123/p12356.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12356/d8cb4edd898062853b319fcd5c8cb66f26e9820a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12356/cd543203abf22fb0fb830d7452c9dd0732178d7f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12356/7ae69d9b1ba08ffe132b431d7994a67e010a8d5e.png)