import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        try (Scanner scan = new Scanner(System.in)) {
            int a = Integer.parseInt(scan.next());
            int b = Integer.parseInt(scan.next());
            
            for(int i=a; i<=b; i++) {
                if(i % 3 == 0) {
                    System.out.println(i);
                } else if(String.valueOf(i).indexOf('3') >= 0) {
                    System.out.println(i);
                }
            }
        }
    }
}