UVA12716 GCD等于XOR GCD XOR

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=823&page=show_problem&problem=4454 [PDF](https://uva.onlinejudge.org/external/127/p12716.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12716/cc5d210204894609a0e48da6c95cc6414641a83a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12716/5d7085e7fd7eda3ad93c4a73fc7ef5c5d929195d.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12716/0f2630f2fa0608aebba1d0774d24219328516369.png)