请求撤下三篇题解：

https://www.luogu.com.cn/blog/user22073/solution-p1561

https://www.luogu.com.cn/blog/fufufubz/solution-p1561

https://www.luogu.com.cn/blog/jzqjzq/solution-p1561

hack 数据之前就已经有人给出：

input: 3 2 1 5 100 7 100

right_output:206

wrong_output:203