
int main()
{
	int n,i,a,b,c,sum=0;
	scanf("%d",&n);
	for (i=1;i<=n;i++)
	{
		if(i%7==0) continue;
		else
		{
			a=i%10;
			b=((i-a)/10)%10;
			c=(i-a-10*b)/100;
			if(a==7||b==7||c==7) continue;
			else sum+=i*i;
		}
	}
	printf("%d\n",sum);

return 0;
}