#include<bits/stdc++.h>
using namespace std;
int main()
{
int i,j=0,n,b,s,g;
cin>>n;
b=n/100;
s=n/10%10;
g=n%10;
for(i=1;i<=n;i++)
{
if(i%7==0||b==7|| s==7||g==7) continue;
j=j+i;
}
cout<<j;

return 0;
}
/**************************************************************
	Problem: 1393
	User: BUDIN666
	Language: C++
	Result: Wrong Answer
****************************************************************/