#include <bits/stdc++.h>
	using namespace std;
	int main(){
	int i,j=0,n;
	cin>>n;
	for(i=1;i<=n;i++){
		if(i%7!=0&&i%10!=7&&i/10%10!=7&&i/100!=7)
		j=j+i;
	}cout<<j;
	
	
	}
/**************************************************************
	Problem: 1393
	User: zhuangwenya
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2072 kb
****************************************************************/