UVA12692 Airport Sort

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=602&page=show_problem&problem=4430 [PDF](https://uva.onlinejudge.org/external/126/p12692.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12692/62edbfa9ee6c93a1c175204c3b4a909e367ecf9e.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12692/2ef587dd9f31a2ea25ae83cfc09709d5d7f4e0b2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12692/9480f89f3e5318d1730bc8b717363418b14c5700.png)