#include<bits/stdc++.h>
using namespace std;
#define pb(x) push_back(x)
#define PII pair<int, int>
typedef long long ll;
const int N = 2e5 + 10, MOD = 998244353;
int fac[N], invfac[N];
ll qmi(int a, int b){
    ll ans = 1;
    while(b){
       if(b & 1) ans = 1ll * ans * a % MOD;
       a = 1ll * a * a % MOD;
       b >>= 1;
    }
    return ans;
}
int main(){
    int n; cin >> n;
    fac[0] = 1;
    for(int i = 1; i <= n; ++ i){
        fac[i] = 1ll * fac[i - 1] * i % MOD;
    }
    invfac[n] = qmi(fac[n], MOD - 2);

    for(int i = n; i >= 1; -- i){
        invfac[i - 1] = 1ll * invfac[i] * i % MOD;
    }
    ll ans = 0;
    for(int i = 1; i <= n; ++ i){
        if(n - i >= i - 1){
            ans = (ans + 1ll * fac[n - i] * fac[n - i] % MOD * invfac[n - i - i + 1]) % MOD;
        }
    }
    // cout << (1ll * fac[5] * invfac[3] % MOD * invfac[2] % MOD + MOD) % MOD << '\n';
    cout << 1ll * (ans + MOD) % MOD;
}