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 Java7 (OpenJDK 1.7.0) (judge verdict: Runtime Error)

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 回数
		int N = sc.nextInt();
		//元になる数列を格納
		ArrayList list = new ArrayList();
		ArrayList b = new ArrayList();
		while (sc.hasNextLine()) {
		   list.add(sc.next() + " ");
		    
		}
	
		//メイン処理
		for(int i = 0; i < N; i++){
		    //新しい配列に要素を格納
		    if(i % 2 == N % 2){
		        b.add(list.get(i));
		    }else{
		        b.add(0,list.get(i));
		    }
		}
		//テストコード
		//String str = b.get();
		
		//回答用出力
		for(int j = 0; j < b.size(); j++){
		    /*if(j == (b.size()-1)){
		        System.out.print(b.get(j));
		    }else{
		        System.out.print(b.get(j));
		    }*/
		    System.out.print(b.get(j));
		}
	    
	}
}