#include <bits/stdc++.h>
using namespace std;

#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;

int main() {
    mint n; {int x; cin >> x; n = x;}
    if (n == 1 || n == 2) {
        cout << 1 << '\n';
        return 0;
    }
    mint nC2 = n * (n - 1) / 2;
    mint nC4 = n * (n - 1) * (n - 2) * (n - 3) / 24;
    cout << (nC2 - n + 2 + nC4 * 25 / 36).val() << '\n';
}