import java.util.Scanner;

class ListNode{
    int val;
    ListNode next;
    ListNode() {}
    ListNode(int val) { this.val = val; }
    ListNode(int val, ListNode next) { this.val = val; this.next = next;}
}

public class Main{
    public static ListNode reverseList(ListNode head){
        ListNode dummy = new ListNode(-1);
        dummy.next = head;

        if (head == null) return head;
        ListNode a = dummy.next;
        ListNode b = a.next;

        while (b != null){
            ListNode tmp = b.next;
            b.next = a;
            a = b;
            b = tmp;
        }

        head.next = null;

        return a;
    }

    public static ListNode createList(int[] nums){
        ListNode dummy = new ListNode(-1);
        ListNode tail = dummy;
        for (int i = 0; i < nums.length; i ++){
            tail = tail.next = new ListNode(nums[i]);
        }
        return dummy.next;
    }

    public static void printList(ListNode head){
        ListNode p = head;
        while (p != null){
            System.out.print(p.val + " ");
            p = p.next;
        }
        System.out.println();
        return;
    }

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()){
            int n = sc.nextInt();
            if (n == 0) {
                System.out.println("list is empty");
                break;
            }
            int[] nums = new int[n];
            for (int i = 0; i < n; i ++) nums[i] = sc.nextInt();
            ListNode head = createList(nums);
            printList(head);
            head = reverseList(head);
            printList(head);
        }
        return;
    }
}