UVA12632 Sum of Totatives

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=602&page=show_problem&problem=4357 [PDF](https://uva.onlinejudge.org/external/126/p12632.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12632/110b3e7db30650e5fabd92db45c72605c4c46790.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12632/208218af6efcc580896858f546a0368742324035.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12632/cdafcf58d4ec405f239aa64c24396293c493850a.png)