Filter Even Numbers

You are given a list of integers. Your task is to filter and return only the even numbers from this list. An integer \( n \) is even if it satisfies the condition \( n \equiv 0 \ (\bmod\ 2) \). This problem requires you to process standard input and produce the output to standard output.

Example: If the input is 6 as the number of elements followed by 1 2 3 4 5 6, the output should be 2 4 6.

inputFormat

The first line contains an integer \( n \), representing the number of elements in the list. The second line contains \( n \) integers separated by spaces.

outputFormat

Output a single line containing all even numbers from the input list separated by a single space. If there are no even numbers, output an empty line.

6
1 2 3 4 5 6

2 4 6