import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		for(int i=1;i<=n;i++) {
			if(i%2==0 && i%3!=0) {
				System.out.println(i);
			}
		}

	}

}
/**************************************************************
	Problem: 1699
	User: admin
	Language: Java
	Result: Accepted
	Time:745 ms
	Memory:40088 kb
****************************************************************/