import java.util.Scanner;

public class Main {
	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();

		for (int i = a; i <= b; i++) {
			if (i % 3 == 0 || String.valueOf(i).indexOf("3") != -1) {
				System.out.println(i);
			}
		}
	}
}