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

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Output Format

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