T270000 270000
题目背景
本题属于 [FAOI](/team/43786)！（270000）
题目描述
本题属于 [FAOI](/team/43786)！（270000）
输入格式
本题属于 [FAOI](/team/43786)！（270000）
输出格式
本题属于 [FAOI](/team/43786)！（270000）
说明/提示
- [T110000 热恋](https://www.luogu.com.cn/problem/T110000)
- [T220000 广告板](https://www.luogu.com.cn/problem/T220000)
- T270000 270000
- [T290000 计算器](https://www.luogu.com.cn/problem/T290000)
- [T300000 %%%lovelyseele ](https://www.luogu.com.cn/problem/T300000)
- [T400000 ecnmd2dj宣传页](https://www.luogu.com.cn/problem/T400000)
- [T420000 「YAC Round 2」蕾娜的基地扩张](https://www.luogu.com.cn/problem/T420000)
- [T440000 爆踩题](https://www.luogu.com.cn/problem/T440000)
- [T460000 黑胡椒的账单](https://www.luogu.com.cn/problem/T460000)
- [T500000 500000](https://www.luogu.com.cn/problem/T500000)
- [T510000 [NOIP1998 提高组] 车站](https://www.luogu.com.cn/problem/T510000)
- [T560000 蚂蚁](https://www.luogu.com.cn/problem/T560000)
- [T570000 570000](https://www.luogu.com.cn/problem/T570000)
------------
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- [U190000 抢题（grab）](https://www.luogu.com.cn/problem/U190000)
- [U200000 分开果子](https://www.luogu.com.cn/problem/U200000)
- [U220000 [提高]显示器](https://www.luogu.com.cn/problem/U220000)
- [U240000 数列](https://www.luogu.com.cn/problem/U240000)
- [U250000 ss](https://www.luogu.com.cn/problem/U250000)
- [U260000 狐狸的谜语（fox）](https://www.luogu.com.cn/problem/U260000)
- [U270000 关注 6872 谢谢喵。](https://www.luogu.com.cn/problem/U270000)
- [U300000 U300000](https://www.luogu.com.cn/problem/U300000)
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- [U380000 Eugene上课](https://www.luogu.com.cn/problem/U380000)
- [U390000 U390000](https://www.luogu.com.cn/problem/U390000)
- [U400000 U400000](https://www.luogu.com.cn/problem/U400000)
- [U430000 U430000](https://www.luogu.com.cn/problem/U430000)
- [U450000 [LdOI-(-9)] 07' - Element-Free Matrix](https://www.luogu.com.cn/problem/U450000)
- [U500000 U500000](https://www.luogu.com.cn/problem/U500000)
- [U510000 Yet another SB Problem](https://www.luogu.com.cn/problem/U510000)
- [U520000 交换](https://www.luogu.com.cn/problem/U520000)
- [U530000 530000](https://www.luogu.com.cn/problem/U530000)
- [U540000 540000](https://www.luogu.com.cn/problem/U540000)