#include <iostream>
using namespace std;

int main(){
	int i,n,g,s,b,x = 0;
	cin>>n;
	for(i = 1;i <= n;i++){
		b = i / 100;
		s = i / 10 % 10;
		g = i % 10;
		
		if(i % 7 != 0 && (b != 7 && s != 7 && g != 7)){
			x = x + i;
		}
	}
	cout<<x<<endl;
}

/**************************************************************
	Problem: 1393
	User: admin
	Language: C++
	Result: Accepted
	Time:22 ms
	Memory:2072 kb
****************************************************************/