Untitled

import java.util.Scanner;

public class Lab4
{
	public static void main(String[] args) {
	    Scanner scanner = new Scanner(System.in);
	    int n = Integer.parseInt(scanner.nextLine());
		for (int i = 0 ; i <= n; i++) {
		    if (i % 2 == 0) {
		        System.out.println((int)Math.pow(2, i));
		    }
		    
		}
	}
}