#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,m,b=0;
	cin>>n;
	for(m=1;m<=n;m++){
		if(m%7==0||m%10==7||m/10==7||m/100==7){
			continue;
		}
		b=b+m; 
	}
	cout<<b;
return 0;

}
/**************************************************************
	Problem: 1393
	User: houshanglin
	Language: C++
	Result: Wrong Answer
****************************************************************/