#include<iostream>
using namespace std;
int main(){
	int n,i;
	cin>>n;
	for(i=1;i<=n;i++){
		if(i%2==0&&i%3!=0){
			cout<<i<<endl;
		}
	}
	 
}
/**************************************************************
	Problem: 1699
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/