UVA11063 B2-Sequence

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=22&page=show_problem&problem=2004 [PDF](https://uva.onlinejudge.org/external/110/p11063.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11063/2e066b30f5f48587bf22f24450d06735e15c9d33.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11063/5f5c19fb076f8d6b7636ae7703ea43fed1e86705.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11063/56f84725f985bb11475beb4bceacbe31c7333666.png)