// Arup Guha
// Shuffle
// 4/10/20

import java.util.*;

public class shuffle {

	public static void main(String[] args) {
	
		Scanner stdin = new Scanner(System.in);
		int n = stdin.nextInt();
		
		while (n != 0) {
		
			LinkedList<String> top = new LinkedList<String>();
			for (int i=0; i<(n+1)/2; i++)
				top.offer(stdin.next());
				
			LinkedList<String> bottom = new LinkedList<String>();
			for (int i=0; i<n/2; i++)
				bottom.offer(stdin.next());

			for (int i=0; i<n; i++) {
				if (i%2 == 0)
					System.out.println(top.pollFirst());
				else
					System.out.println(bottom.pollFirst());
			}
		
			n = stdin.nextInt();
		}
	}
}