#include <bits/stdc++.h>
using namespace std;
 
int main(){
    int n,i,c,s = 0;
    cin>>n;
    for(i = 1;i <= n;i++){
        c = 0;
        if(i % 2 == 0){
            c++;
        }
         
        if(i % 3 == 0){
            c++;
        }
         
        if(i % 5 == 0){
            c++;
        }
         
        if(i % 7 == 0){
            c++;
        }
         
        if(c >= 2){
            s = s + i;
        }
    }
     
    cout<<s<<endl;
}
/**************************************************************
	Problem: 1449
	User: wengsihan
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2072 kb
****************************************************************/