#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,g=0,zg=0,n;
	cin>>n;
	for(i=1;i<=n;i++){
		g=0;
		if(i%2==0){
			g++;
		}
		if(i%3==0){
			g++;
		}
		if(i%5==0){
			g++;
		}
		if(i%7==0){
			g++;
		}
		if(g>1){
			zg+=i;
		}
		
	}
	cout<<zg;
	return 0;
}

/**************************************************************
	Problem: 1449
	User: tangkaixuan
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2072 kb
****************************************************************/