#include <bits/stdc++.h>
using namespace std;
int main(){
    int a=1,b;
    cin>>b;
    while(a<=b){
        if(a%2==0&&a%3!=0){
        cout<<a<<endl;
        }
        a++;
    }
}
/**************************************************************
	Problem: 1699
	User: sucongyi
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/