UVA12995 Farey Sequence

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=862&page=show_problem&problem=4878 [PDF](https://uva.onlinejudge.org/external/129/p12995.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12995/01cce3f4be45bc505a588c99b148e4e463572237.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12995/a24a6fdbcf9578f9b19da4c7d4ce0cc32f25aa47.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12995/acd32b4a981e98545dcbbee0d0f297cd94de8869.png)