public class recursion {
    public static void iterten(int num) {
        for (int i = 0; i < num; i++) {
            if (i * 10 < num) {
                System.out.println(i*10);
            }
        }
    }

    public static void recurten(int num) {
       // System.out.println(num);
        if (num == 0) {
            System.out.println(num);
        } else {
            if (num/10 > 0) {
                num = num/10;
                System.out.println(num*10);
              //  System.out.println("test");

                num--;
                recurten(num);
                //System.out.println(num);
            } else {
                System.out.println(num*10);
                num--;
                recurten(num);
            }
        }

    }
}