// Page 252
// output: 21, 19, 17, ..., 11?

import java.util.Scanner;
public class Prog_16_1m1
{
	public static void CountUp ( int num )
	{
		if (num>21)
			System.out.println();
		else
		{
					CountUp(num+2);
	       System.out.print(num+" ");

	    }
	}

	public static void main(String[] args)
	{
		CountUp(11);
		System.out.println("\n\n");
	}
}