UVA11515 Cranes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2510 [PDF](https://uva.onlinejudge.org/external/115/p11515.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11515/0bc4158eaea5819be344861a96882bbb0540ebb3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11515/0f8353aa198c5ddb0b8485140457b2ade794326f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11515/ac50a01d6fad2ddb25148ec44c8f94585163f568.png)