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 C# (.NET Core 3.1.201) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.ExceptionServices;
using System.Runtime.InteropServices;
using System.Text;


namespace AtCoderDotNetCore
{
	class Program
	{
		static void Main(string[] args)
		{
			Question.Exec();
		}
	}

	public static class Question
	{
		public static void Exec()
		{
			long n = long.Parse(Console.ReadLine());
			var a = Console.ReadLine().Split(' ').Select(i => long.Parse(i)).ToArray();


			if (n % 2 == 1) {
				for (var i = n - 1; i >= 0; i = i - 2) {
					Console.Write($"{a[i]}");
					Console.Write(" ");
				}

				for (var i = 1; i < n - 1; i = i + 2) {
					Console.Write($"{a[i]}");

					if (i < n - 1 - 1) {
						Console.Write(" ");
					} else {
						Console.WriteLine();
					}
				}
			} else {
				for (var i = n - 1; i >= 1; i = i - 2) {
					Console.Write($"{a[i]}");
					Console.Write(" ");
				}

				for (var i = 0; i < n; i = i + 2) {
					Console.Write($"{a[i]}");

					if (i < n - 1) {
						Console.Write(" ");
					} else {
						Console.WriteLine();
					}
				}
			}
		}
	}
}