#include<stdio.h>
#include<math.h>
int f(int);

int main(void){
	int a=0, b=600, x,d;
	int n,i;
	int s,sum;
	scanf("%d", &d);
	n=(b-a)/d;
	
	sum=0.0;
	x=a;
	for(i=1; i<=n; i++){
		s=d*f(x);
		x+=d;
		sum+=s;
	}
	printf("%d\n", sum);
}
int f(int x){
	return x*x;
}

