#include<iostream>
#include<vector>

using namespace std;

double rect_area(double a,double b){
  return a*b*b;
}


int main(){
  int d;vector<int> ans;
  while(cin >> d){
    int l=int(600/d);
    double c=0;
    for(int i=0;i<l;i++){
      c+=rect_area(d,i*d);
    }
    ans.push_back(int(c));
  }
  for(auto& e: ans){
    cout << e << endl;
  }

}

