#include <stdio.h>
#include <iostream>
#include <algorithm>
#include <math.h>
 
using namespace std;
 
int main(){
 
    int d,sum;
    while(scanf("%d",&d)!=EOF){
        sum = 0;
        for(int i=d;i<=600;i+=d){
            sum += d*(i-d)*(i-d);
        }
        printf("%d\n",sum);
    }
 
    return 0;
}
