UVA311 Packets

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=5&page=show_problem&problem=247 [PDF](https://uva.onlinejudge.org/external/3/p311.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA311/6ce420370b8ee684e714a9cbbc89ef5a69a34007.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA311/359efb63ac723bea0ac0553a58b8ae89e2bd3b0a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA311/ea4afeadb8e88a316acc763998bdf1a6690bbbf3.png)