import java.util.Scanner;

public class No00000207_Main2 {

	public static void main(String[] args) {

		Scanner scan = new Scanner(System.in);
		int a = scan.nextInt();
		String b = scan.next();

		for(int i = a; i <= Integer.parseInt(b); i++) {
			if(i % 3 == 0 || b.contains("3")) {
				System.out.println(i);
			}
		}
		scan. close();
	}
}