import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		String s;
		for (int i = a; i < b; i++) {
			s = Integer.toString(i);
			if (i % 3 == 0 || s.matches(".*3.*") ) {
			System.out.println(i);
			}
		}
	}
}