Problem: Cody loves even numbers. He was bored and decided to print all the even numbers at the even indexes of an array(1-indexed). He wants your help to complete this task.

Input: The first line of the input contains an integer N denoting the size of an array.

The second line contains N-space separated integers denoting the array.

Output: Print all the numbers separated by space which satisfies the condition. 

Constraints: 1<=N<=10^3.

1<=Array Elements<=10^5.

Sample Input: 6

2 3 5 4 7 8

Sample Output: 

4 8

n = int(input())
a = tuple(map(int, input().split()))
for i in range(1, n, 2):
  if a[i] % 2 == 0:
    print(a[i], end=' ')