UVA11330 Andy's Shoes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=25&page=show_problem&problem=2305 [PDF](https://uva.onlinejudge.org/external/113/p11330.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11330/6e40928dee12de55754daec460ffe98b224fac6f.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11330/01d3783a463279da33688a26971f7ba59530b2be.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11330/64492ea519cf4a013758fa8d92719676288f03fe.png)