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

	    
	
 

/**************************************************************
	Problem: 1699
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/