#include<iostream>
using namespace std;

int f(int _i)
{
	return _i*_i;
}

int main()
{
	int d;
	while(cin >> d){
		int S = 0;

		for(int i=1;i<600/d;++i){
			S += f(d*i)*d;
		}

		cout << S << endl;

	}
	return 0;
}