import java.util.Scanner;

public class Main {

	static Scanner sc = new Scanner(System.in);

	public static void main(String[] args) {
		int a = sc.nextInt();
		int b = sc.nextInt();

		for(int i = a; i <= b; i++) {
			if(i % 3 == 0) {
				System.out.println(i);
				continue;
			}
			for(int j = i; j != 0; j /= 10) {
				if(j % 10 == 3) {
					System.out.println(i);
					break;
				}
			}
		}
    }
}