#include<bits/stdc++.h>
using namespace std;
int n;
int main(){
    cin>>n;
    for(int i=1;i<=n;i++){
	if(i%2==0&&i%3!=0){
		cout<<i<<endl;
	}
	}
	return 0;       
}
/**************************************************************
	Problem: 1699
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/