#include <iostream>
using namespace std;

int main() {
    int n;
    cin >> n;
    
    for (int i = 1; i <= n; i++) {
        if (i % 2 == 0 && i % 3 != 0) {
            cout << i << endl;
        }
    }
    
    return 0;
}

/**************************************************************
	Problem: 1699
	User: fandaohan
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/