// Program 26: Composite Magic Numbers in a Range

import java.util.*;
class CompositeMagic {
    static boolean composite(int n) {
        if (n < 4) {
            return false;
        }
        for (int i = 2; i <= n / i; i++) {
            if (n % i == 0) {
                return true;
            }
        }
        return false;
    }
    static boolean magic(int n) {
        while (n > 9) {
            int sum = 0;
            while (n > 0) {
                sum += n % 10;
                n /= 10;
            }
            n = sum;
        }
        return n == 1;
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        if (a < 1 || b < a) {
            System.out.println("Invalid range");
            return;
        }
        for (int n = a; n <= b; n++) {
            if (composite(n) && magic(n)) {
                System.out.println(n);
            }
        }
    }
}