UVA124 Following Orders

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=60 [PDF](https://uva.onlinejudge.org/external/1/p124.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA124/a4a2f6fd96f29dbbab122912895a18a100222b62.png)

Input Format

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Output Format

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