UVA11701 Cantor

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=117&page=show_problem&problem=2748 [PDF](https://uva.onlinejudge.org/external/117/p11701.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11701/f5b76cbe99c1eb58dc5e88ecbc110866268d8b1a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11701/608c5b6220ee818087ce00f404d43e9b3d4fa331.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11701/12ca51cc1a50069797196afa7df573e4509a10cb.png)