#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<int, int>;

int main() {
  cin.tie(0);
  ios_base::sync_with_stdio(false);
  cout << fixed << setprecision(10);
  
  int d;
  while (cin >> d) {
    int ans = 0;
    for (int i = d; i <= 600 - d; i += d) {
      ans += d * i * i;
    }
    cout << ans << endl;
  }

  return 0;
}
