UVA120 煎饼 Stacks of Flapjacks

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=56 [PDF](https://uva.onlinejudge.org/external/1/p120.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA120/e9de4fbc88c5e223cc5fd5e9274c040a16306129.png)

Input Format

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Output Format

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