UVA10112 Myacm Triangles

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=13&page=show_problem&problem=1053 [PDF](https://uva.onlinejudge.org/external/101/p10112.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10112/2e3ed64b2e9fdb6e2c028f026acd560cdc48b2ce.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10112/73298b09045a98779ed296fcdebfcd3b583030e9.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10112/4e86f99a5bdbc8634a64e38814d5700b80b7b88a.png)