/**
 * @file    3.cpp
 * @author  ???
 * @date    2013-10-10
 * @description
 *          ????????? - ?7????????1045?
 */
int main()
{
	int n,Sum=0;
	cin>>n;
	for (int i=0;i!=n+1;i++)
	{
		int a=(i/10),b=i-10*a;//?a?b???i???????????? 
		if( (i%7!=0) & (a!=7) & (b!=7)) 
			Sum+=i*i;//??????1?n?7?????????????Sum? 
	} 	
	cout<<Sum<<endl;//??Sum???????? 
	return 0;
} 