#include<cstdio>

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

int main(){
  int d;
  while(scanf("%d", &d) == 1){
    int sum = 0;
    for(int i=1;i<600/d;i++){
      sum+=f(i*d)*d;
    }
    printf("%d\n", sum);
  }
}