//?7???????
int main()
{
	int n,i,a[100],sum=0;
	cin>>n;//????
	for(i=0;i<n;i++) 
		{a[i]=i+1;//??????
		if (a[i]%7!=0&&a[i]%10!=7)
			{if(a[i]<70||a[i]>79) sum=sum+pow((float)a[i],2);//??????????
			}
		}
	cout<<sum<<endl;
	return 0;
}