#include <iostream>
#include <cstdio>
#include <cstdlib>

using namespace std;

int main()
{
	int d;

	while(cin >> d){
		int sum=0;
		for(int i=d; i<600; i+=d){
			sum += (i*i*d);
		}
		cout << sum << endl;
	}

	return 0;
}