UVA135 No Rectangles

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=71 [PDF](https://uva.onlinejudge.org/external/1/p135.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA135/0e4cd2da2c54a0f286214034fdcaeacbd5ba48c3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA135/46b4b7c67cd9696ccb1636ecab20f13c790da924.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA135/a3162a14041daad84b48939f562f03a0ce739364.png)