Problem: Let n be an integer. Consider all permutations on integers 1 to n in lexicographic order, and concatenate them into one big sequence P. For example, if n = 3, then P = [1, 2, 3, 1, 3, 2, 2, 1, 3, 2, 3, 1, 3, 1, 2, 3, 2, 1]. The length of this sequence is n ⋅ n!.

Let 1 ≤ i ≤ j ≤ n ⋅ n! be a pair of indices. We call the sequence (P_i, P_{i+1}, ..., P_{j-1}, P_j) a subarray of P. 

You are given n. Find the number of distinct subarrays of P. Since this number may be large, output it modulo 998244353 (a prime number). 

Input

The only line contains one integer n (1 ≤ n ≤ 10^6), as described in the problem statement.

Output

Output a single integer — the number of distinct subarrays, modulo 998244353.

Examples

Input


2


Output


8


Input


10


Output


19210869

Note

In the first example, the sequence P = [1, 2, 2, 1]. It has eight distinct subarrays: [1], [2], [1, 2], [2, 1], [2, 2], [1, 2, 2], [2, 2, 1] and [1, 2, 2, 1]. 

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
template <class T>
inline void read(T &x) {
  x = 0;
  char c = getchar();
  int f = 1;
  while (!isdigit(c)) {
    if (c == '-') f = -1;
    c = getchar();
  }
  while (isdigit(c)) {
    x = x * 10 + c - '0';
    c = getchar();
  }
  x *= f;
}
template <class T>
T gcd(T a, T b) {
  return !b ? a : gcd(b, a % b);
}
template <class T>
inline void umin(T &x, T y) {
  x = x < y ? x : y;
}
template <class T>
inline void umax(T &x, T y) {
  x = x > y ? x : y;
}
inline unsigned int R() {
  static unsigned int seed = 416;
  return seed ^= seed >> 5, seed ^= seed << 17, seed ^= seed >> 13;
}
const int N = 2e6 + 11, mo = 998244353;
int n, c[N];
inline void add(int &x, int y) { x = x + y < mo ? x + y : x + y - mo; }
inline void sub(int &x, int y) { x = x - y >= 0 ? x - y : x - y + mo; }
inline int power(int a, int n) {
  int res = 1;
  while (n) {
    if (n & 1) res = 1LL * res * a % mo;
    a = 1LL * a * a % mo;
    n >>= 1;
  }
  return res;
}
int fac[N], ifac[N];
void iniC(int n) {
  fac[0] = 1;
  for (register int i = (1); i <= (n); i++) fac[i] = 1LL * fac[i - 1] * i % mo;
  ifac[n] = power(fac[n], mo - 2);
  for (register int i = (n - 1); i >= (0); i--)
    ifac[i] = 1LL * ifac[i + 1] * (i + 1) % mo;
}
inline int C(int n, int m) {
  return m >= 0 && m <= n ? 1LL * fac[n] * ifac[m] % mo * ifac[n - m] % mo : 0;
}
int qry(int n, int i) {
  if (i == n - 1) return n;
  if (i == n) return 1ll * (n - 1) * (n - 2) % mo;
  if (i == n + 1) return (1ll * (n - 2) * (n - 3) % mo * n + n - 2) % mo;
  int x = i - n - 1;
  return 1ll * qry(n - x, i - 2 * x) * fac[n] % mo * ifac[n - x] % mo;
}
int main() {
  read(n);
  iniC(2 * n);
  for (register int i = (n - 1); i <= (2 * n - 2); i++) c[i] = qry(n, i);
  int res = 0;
  for (register int i = (n - 1); i <= (2 * n - 2); i++)
    res = (res + 1ll * n * (i + i - n + 1) % mo * c[i]) % mo;
  int t = 1ll * n * fac[n] % mo;
  cout << ((1ll * t * (t + 1) / 2 - 1ll * res * (mo + 1) / 2) % mo + mo) % mo;
  return 0;
}