#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int inf = 1e9 + 7;
using pii = pair<int, int>;
#define rep(i, n) for (int i = 0; i < n; ++i)
#define rrep(i, st, n) for (int i = st; i < n; ++i)
#define chmax(a, b) a = max(a, b)
#define chmin(a, b) a = min(a, b)
int dx[] = {0, 0, -1, 1};
int dy[] = {1, -1, 0, 0};
const int mod = 1e9 + 7;
ll power(ll a,ll b){return b?power(a*a%mod,b/2)*(b%2?a:1)%mod:1;}

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

