UVA13154 Extreme XOR Sum

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=871&page=show_problem&problem=5076 [PDF](https://uva.onlinejudge.org/external/131/p13154.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13154/7859104d5e820da06f1ffdfa52221a529c0db8c4.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13154/5a9ad624166f4c1e722ff5680a78e76f4b17e2ea.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13154/6d6d50f3cc2146426d694241f82a335d9abae716.png)