/*
?????7???????
??????
?????2011.9.4
*/
int main()
{
	int i,n,s,a,b,c;
	cin >> n;
	if (n < 100 && n > 0 )
	{
		s = 0;
	    for (i=1;i<=n;i++)
		{
			a = i % 7;                                   //a?7?i???
			b = i % 10;                                  //b?i????
			c = i / 10;                                  //c?i????
			if( a == 0 || b == 7 || c == 7 )
				s = s;
			else
				s = s + i * i;
		}
        cout << s << endl;
	}
	else
		cout << "error" << endl;
	return 0;

}