import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int b = scan.nextInt();
        for (int i = a; i <= b; i++) {
            if (i % 3 == 0 || i / 10 == 3 || i % 10 == 3) {
                System.out.println(i);
            }
        }
        scan.close();
    }
}