UVA686 Goldbach's Conjecture (II)

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=627 [PDF](https://uva.onlinejudge.org/external/6/p686.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA686/795df7362d521bf6dc23adfb4fee590ed910d08e.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA686/4487013ef92f7c8d600f9f5b380dc263eeef8e3c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA686/49f79a6ff6d76c4c24e1e54d676d5c3cde257f9b.png)