//
// output: 10, 8, 4, 2

import java.util.Scanner;
public class Even_Down
{
	public static void CountUp ( int num )
	{
		if (num>10)
			System.out.println();
		else
		{
	       CountUp(num+2);
	       System.out.print(num+" ");
	  }
	}

	public static void main(String[] args)
	{
		CountUp(2);
		System.out.println("\n\n");
	}
}