UVA12028 A Gift from the Setter

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3179 [PDF](https://uva.onlinejudge.org/external/120/p12028.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12028/fd03c902d76f31cfd4fbef49a9bd3c0a75b6419e.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12028/16bc26f2042dde5f02994eab531de90e2b5e70f6.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12028/9bf7677b9e1a4ec0aa68db72319c50b3d68c496b.png)