UVA11420 Chest of Drawers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=26&page=show_problem&problem=2415 [PDF](https://uva.onlinejudge.org/external/114/p11420.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11420/9f61e54f524f8f8b82f3a2b9dff52deee696789b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11420/8e0fc2f7b861437a8b17c5b3faf319e37de4a2d8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11420/615f8065da63d0434137eb6d27916960b6e2dcae.png)