#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
#define pb push_back
#define all(a) a.begin(), a.end()
#define sz(a) ((int)a.size())
#ifdef Doludu
template <typename T>
ostream& operator << (ostream &o, vector <T> vec) {
    o << "{"; int f = 0;
    for (T i : vec) o << (f++ ? " " : "") << i;
    return o << "}";
}
void bug__(int c, auto ...a) {
    cerr << "\e[1;" << c << "m";
    (..., (cerr << a << " "));
    cerr << "\e[0m" << endl;
}
#define bug_(c, x...) bug__(c, __LINE__, "[" + string(#x) + "]", x)
#define bug(x...) bug_(32, x)
#define bugv(x...) bug_(36, vector(x))
#define safe bug_(33, "safe")
#else
#define bug(x...) void(0)
#define bugv(x...) void(0)
#define safe void(0)
#endif
const int mod = 998244353, N = 10000006;

int add(int a, int b) { a += b; if (a >= mod) a -= mod; return a; }
int sub(int a, int b) { a -= b; if (a < 0) a += mod; return a; }
int mul(int a, int b) { return 1ll * a * b % mod; }
int Pow(int a, int b) { int ans = 1; for (; b; b >>= 1, a = mul(a, a)) if (b & 1) ans = mul(ans, a); return ans; }

int main() {
    ios::sync_with_stdio(false), cin.tie(0);
    int n;
    cin >> n;
    if (n == 1 || n == 2) {
        cout << "1\n";
        return 0;
    }
    if (n == 3) {
        cout << "2\n";
        return 0;
    }
    int ans = add(sub(mul(mul(n, n - 1), (mod + 1) / 2), n), 2);
    bug(ans);

    int p = mul(5, Pow(6, mod - 2));
    p = mul(p, p);

    ans = add(ans, mul(mul(p, mul(n, mul(n - 1, mul(n - 2, n - 3)))), Pow(24, mod - 2)));

    cout << ans << "\n";
}