#include <bits/stdc++.h>
using namespace std;
int main(){
	int n,i=1;
	cin>>n;
	while(i<=n){
		if(i%2==0&&i%3!=0){
			cout<<i<<endl;
		}
		i++;
	} 
	
}

/**************************************************************
	Problem: 1699
	User: 15159808820
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/