#include <bits/stdc++.h> #define ll long long using namespace std; int a[100]; int main() { int n; cin >> n; int k = 0; for (int i = 2; n > a[k]; i++) { a[++k] = i; n -= i; } if (n == a[k]) a[k]++; for (int i = 0; i < n; i++) a[k-i]++; ll sum = 1; for (int i = 1; i <= k; i++) sum *= a[i]; cout << sum << endl; return 0; }