P7439 "KrOI2021" Feux Follets (Weakened Version).
Description
Let $\text{cyc}_\pi$ be the number of cycles when treating a permutation $\pi$ of length $n$ as a permutation mapping. Given two integers $n, k$ and a degree-$(k-1)$ polynomial, compute:
$$
\sum\limits_{\pi} F(\text{cyc}_{\pi})
$$
where $\pi$ ranges over all permutations of length $n$ such that there is no position $i$ with $\pi_i = i$.
Input Format
The first line contains two integers $n$ and $k$.
The second line contains $k$ integers, giving the coefficients of the polynomial from low degree to high degree.
Output Format
Output one integer, the answer modulo $998244353$.
Explanation/Hint
### Constraints
For $100\%$ of the testdata, $1 \le n, k \le 10^5$.
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