UVA12539 Ultimate Device

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=3984 [PDF](https://uva.onlinejudge.org/external/125/p12539.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12539/9cf21ab94ba18d1bdc0d6b83e4fef26610ce0c3b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12539/9feaa034cd957ea9551978c2ac0b715695a84ad1.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12539/fbd240b74b5df88b5b315f97fc2b0b495e03bbfd.png)