#685. Every 3th element
Starting from the first element, print every 3th element.
### Input
The first line has n, the second line has n integers separated by spaces.
### Output
One line.
Examples
Input
4 31 43 49 7
Output
31 7
Input
6 56 43 57 27 57 38
Output
56 27
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.