You are already aware of Karan's fondness for even numbers. Since you have helped him out in the past, he again reaches out to you for help.
He has a very long list of numbers, but this time, the numbers are in a space separated format. All you need to do is to print the even numbers from the list, one per line. The list ends when -1 is encountered.
Input: The list.
Output: Print even numbers from the list, one per line.
Constraints: -1 <= i <= 10^18