UVA409 Excuses, Excuses!

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=350 [PDF](https://uva.onlinejudge.org/external/4/p409.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA409/5eb677fa30a393e7ed84915f73c03dba83dc3164.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA409/2558cadd52ced0b80712d751aef2571c1acfd192.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA409/ebd25f2521dc1337ba0b7d4f4497480e616d9541.png)