题目描述
Niwango-kun has \(N\\) chickens as his pets. The chickens are identified by numbers \(1\\) to \(N\\), and the size of the \(i\\)-th chicken is a positive integer \(a_i\\).
\(N\\) chickens decided to take each other's hand (wing) and form some cycles. The way to make cycles is represented by a permutation \(p\\) of \(1, \ldots , N\\). Chicken \(i\\) takes chicken \(p_i\\)'s left hand by its right hand. Chickens may take their own hand.
Let us define the cycle containing chicken \(i\\) as the set consisting of chickens \(p_i, p_{p_i}, \ldots, p_{\ddots_i} = i\\). It can be proven that after each chicken takes some chicken's hand, the \(N\\) chickens can be decomposed into cycles.
The beauty \(f(p)\\) of a way of forming cycles is defined as the product of the size of the smallest chicken in each cycle. Let \(b_i \ (1 \leq i \leq N)\\) be the sum of \(f(p)\\) among all possible permutations \(p\\) for which \(i\\) cycles are formed in the procedure above.
Find the greatest common divisor of \(b_1, b_2, \ldots, b_N\\) and print it \({\rm mod} \ 998244353\\).
Constraints
- \(1 \leq N \leq 10^5\\)
- \(1 \leq a_i \leq 10^9\\)
- All numbers given in input are integers
Input
Input is given from Standard Input in the following format:
\(N\)
\(a_1\) \(a_2\) \(\ldots\) \(a_N\)
Output
Print the answer.
Examples
Input
2
4 3
Output
3
Input
4
2 5 2 5
Output
2
输入格式
见题面
输出格式
见题面