#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,s=0;
	cin>>n;
	for(i=1;i<=n;i++){
		
		if(i%7!=0&&i%10!=7&&i/10%10!=7&&i/100!=7) s=s+i;
	}
	cout<<s;
}
/**************************************************************
	Problem: 1393
	User: fandaohan
	Language: C++
	Result: Accepted
	Time:20 ms
	Memory:2072 kb
****************************************************************/