#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: wengsihan
	Language: C
	Result: Compile Error
****************************************************************/