public class Driver
{
    static int [] list = {9,8,7,6,5,4,3,2,1};
    static final int FIRST = 0;

    public static void reverse(int index)
    {
	if (index < (list.length-1))
	{
	    reverse(++index);
	    System.out.print(list[index]);
	}
    }

    public static void main(String [] args)
    {
	reverse(FIRST);
	System.out.println();
    }
}