#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,m=0;
    cin>>n;
    for(i=1;i<=n;i++){
        if(i%7!=0&&i%10!=7&&i/10%10!=7&&i/100!=7) m=m+i;
    }
    cout<<m;   
}
/**************************************************************
	Problem: 1699
	User: yangjunwen
	Language: C++
	Result: Wrong Answer
****************************************************************/