UVA13053 Gift Box

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=866&page=show_problem&problem=4951 [PDF](https://uva.onlinejudge.org/external/130/p13053.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13053/0600a5b9c9acf38f35370b42e83d3c56755a9c8f.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13053/ca63ca49d310ee0bdba75c09934276755cbe555e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13053/74c7173eb2e2ced7709b8e7c4a6c9b4651e1b02b.png)