#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,a,b,c,h=0;
	   cin>>n;
	for(i=1;i<=n;i++){
		a=i%10;
		b=i/10%10;
		c=i/100;
		if(a!=7&&b!=7&&c!=7&&i%7!=0 ){
			h=h+i;
		}
	
	}cout<<h;

	return 0;
}


/**************************************************************
	Problem: 1393
	User: jiangyuanfeng
	Language: C++
	Result: Accepted
	Time:21 ms
	Memory:2072 kb
****************************************************************/