Problem:
Score : 300 points

Problem Statement

You are given an integer sequence of length n, a_1, ..., a_n.
Let us consider performing the following n operations on an empty sequence b.

The i-th operation is as follows:

Append a_i to the end of b.

Reverse the order of the elements in b.

Find the sequence b obtained after these n operations.

Constraints

1 \leq n \leq 2\times 10^5

0 \leq a_i \leq 10^9

n and a_i are integers.

Input

Input is given from Standard Input in the following format:

n
a_1 a_2 ... a_n

Output

Print n integers in a line with spaces in between.
The i-th integer should be b_i.

Sample Input 1

4
1 2 3 4

Sample Output 1

4 2 1 3

After step 1 of the first operation, b becomes: 1.

After step 2 of the first operation, b becomes: 1.

After step 1 of the second operation, b becomes: 1, 2.

After step 2 of the second operation, b becomes: 2, 1.

After step 1 of the third operation, b becomes: 2, 1, 3.

After step 2 of the third operation, b becomes: 3, 1, 2.

After step 1 of the fourth operation, b becomes: 3, 1, 2, 4.

After step 2 of the fourth operation, b becomes: 4, 2, 1, 3.

Thus, the answer is 4 2 1 3.

Sample Input 2

3
1 2 3

Sample Output 2

3 1 2

As shown above in Sample Output 1, b becomes 3, 1, 2 after step 2 of the third operation. Thus, the answer is 3 1 2.

Sample Input 3

1
1000000000

Sample Output 3

1000000000

Sample Input 4

6
0 6 7 6 7 0

Sample Output 4

0 6 6 0 7 7

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.io.IOException;
import java.util.ArrayDeque;
import java.util.Iterator;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) throws NumberFormatException, IOException {

		Scanner sc = new Scanner(System.in);

		int n = sc.nextInt();
		int a[] = new int[n];

		for (int i = 0; i < n; i++){

			a[i] = sc.nextInt();

		}

		ArrayDeque<Integer> que = new ArrayDeque<Integer>();
		for (int i = 0; i < n; i++){
			if (i % 2 == 0){
				que.addFirst(a[i]);
			} else {
				que.addLast(a[i]);
			}
		}

		StringBuffer sb1 = new StringBuffer();
		StringBuffer sb2 = new StringBuffer();
		for (Iterator<Integer> it = que.iterator(); it.hasNext();){
			sb1.append(it.next());
			sb1.append(" ");
		}
		sb2.append(sb1.substring(0, sb1.length()-1));
		if (n % 2 == 0){
			System.out.println(sb2.reverse().toString());
		} else {
			System.out.println(sb2.toString());
		}

	}

}