#include using namespace std; // using mint = long double; // using mint = modint998244353; // using mint = modint1000000007; typedef long long ll; typedef pair P; typedef pair T; typedef pair> Pd; const ll INF = 1e18; const ll fact_table = 820000; priority_queue pql; priority_queue

pqp; // big priority queue priority_queue, greater> pqls; priority_queue, greater

> pqps; // small priority queue // top pop ll dx[8] = {1, 0, -1, 0, 1, 1, -1, -1}; ll dy[8] = {0, 1, 0, -1, -1, 1, 1, -1}; //↓,→,↑,← #define p(x) cout << x << "\n"; #define el cout << "\n"; #define pe(x) cout << x << " "; #define ps(x) cout << fixed << setprecision(25) << x << endl; #define pu(x) cout << (x); #define pb push_back #define eb emplace_back #define lb lower_bound #define ub upper_bound #define pc(x) cout << x << ","; #define rep(i, n) for (ll i = 0; i < (n); i++) #define rep2(i, a, b) for (ll i = a; i <= (b); i++) #define rep3(i, a, b) for (ll i = a; i >= (b); i--) #define all(c) begin(c), end(c) #define sorti(v) sort(all(v)) #define sortd(v) \ sort(all(v)); \ reverse(all(v)); #define SUM(v) accumulate(all(v), 0LL) #define MIN(v) *min_element(all(v)) #define MAX(v) *max_element(all(v)) typedef vector vec; typedef vector> mat; // vec v(n) -> 長さnのベクトルを宣言 // mat dp(h, vec(w)) -> h * w の行列を宣言 // const ll mod = 1000000007ll; const ll mod = 998244353ll; ll mypow(ll a, ll b, ll m = mod) { ll x = 1; while (b) { while (!(b & 1)) { (a *= a) %= m; b >>= 1; } (x *= a) %= m; b--; } return x; } vec rv(ll read) { vec res(read); for (int i = 0; i < read; i++) { cin >> res[i]; } return res; } /* ll fact[fact_table + 5], rfact[fact_table + 5]; void c3_init() { fact[0] = rfact[0] = 1; for (ll i = 1; i <= fact_table; i++) { fact[i] = (fact[i - 1] * i) % mod; } rfact[fact_table] = mypow(fact[fact_table], mod - 2, mod); for (ll i = fact_table; i >= 1; i--) { rfact[i - 1] = rfact[i] * i; rfact[i - 1] %= mod; } return; } ll c3(ll n, ll r) { return (((fact[n] * rfact[r]) % mod) * rfact[n - r]) % mod; } */ bool icpc = false; bool multicase = false; ll n, m, k; template struct PrimeFact { vector spf; PrimeFact(T N) { init(N); } void init(T N) { // 前処理。spf を求める spf.assign(N + 1, 0); for (T i = 0; i <= N; i++) spf[i] = i; for (T i = 2; i * i <= N; i++) { if (spf[i] == i) { for (T j = i * i; j <= N; j += i) { if (spf[j] == j) { spf[j] = i; } } } } } map get(T n) { // nの素因数分解を求める map m; while (n != 1) { m[spf[n]]++; n /= spf[n]; } return m; } }; bool solve() { ll n; cin >> n; PrimeFact prime(n); map mpres; for (int i = 1; i <= n - 1; i++) { ll a = i, b = n - i; map mp; auto r1 = prime.get(a), r2 = prime.get(b); for (auto [prime, num] : r1) { mp[prime] += num; } for (auto [prime, num] : r2) { mp[prime] += num; } for (auto [prime, num] : mp) { mpres[prime] = max(num, mpres[prime]); } } ll ans = 1ll; for (auto [prime, num] : mpres) { ans *= mypow(prime, num); ans %= mod; } p(ans); return true; } /* */ int main() { // ios::sync_with_stdio(false); // cin.tie(nullptr); if (icpc) { while (solve()) ; return 0; } ll q, testcase = 1; if (multicase) { cin >> q; } else { q = 1; } while (q--) { // cout << "Case #" << testcase << ": "; solve(); testcase++; } // solve(); return 0; }