UVA11502 Rocket Stages

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2497 [PDF](https://uva.onlinejudge.org/external/115/p11502.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11502/398d65911f3963661da3269e631ece1248a0af14.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11502/620c2f01674470bc97eaf6a1931b27be736e72ee.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11502/4f695333f20bd6d649e01719f19fbb3c999e221d.png)