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# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;
using System.Text; 
using System.Collections.Generic;
using System.Linq;

public class Remainder
{
    static public void Main ()
    {
        var LR= Console.ReadLine().Split(' ').Select(x => long.Parse(x)).ToArray();
        var L = LR[0];
        var R = LR[1];
        long min = 2019;
        var flag = false;
        
        for(long i = L;i < R ; i++){
            for(long j = i+1;j <= R ; j++){
                var L2 = i%2019;
                var R2 = j%2019;
                var com = (L2*R2)%2019;
                if(com<min){
                    min = com;
                }
                if(min == 0){
                    flag = true;
                    break;
                }                
            }
            if(flag){
                break;
            }
        }
        
        Console.WriteLine(min);

    }

}