import java.util.Scanner;

public class world {

	public static void main(String[] args) {
		Scanner sn = new Scanner(System.in);
		int a = sn.nextInt();
		int b = sn.nextInt();
		sn.close();
		if (b - a >= 100) {
			return;
		}
		for (int i = a; i <= b; i++) {
			String s = String.valueOf(i);
			if (i % 3 == 0) {
				System.out.println(i);
			} else if (s.contains("3")) {
				System.out.println(i);
			} else {
				return;
			}
		}
	}
}