Contemplation! Algebra

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=18&page=show_problem&problem=1596 [PDF](https://uva.onlinejudge.org/external/106/p10655.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10655/dbec0a8cf5c06f09ce23405958f51502311809a2.png)

输入输出格式

输入格式

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10655/208c2ee85a813765e3f129ae3c4df053aa8abdc5.png)

输出格式

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10655/6302967fa4db89f5c671e6a0834a6aa87e341678.png)

输入输出样例

输入样例 #1

10 16 2
7 12 3
0 0

输出样例 #1

68
91