#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: admin
	Language: C++
	Result: Accepted
	Time:25 ms
	Memory:2072 kb
****************************************************************/