import java.util.*;
import java.util.regex.*;
import java.util.Collections;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        ArrayList<Integer> list = new ArrayList<Integer>();
        String regex = "3";
        Pattern p = Pattern.compile(regex);
        for (int i = a; i <= b ; i++) {
            //System.out.println(i);
            if (i % 3 == 0) {
                //System.out.println(i);
                list.add (i);
            } else {
                String str = String.valueOf(i);
                if (p.matcher(str).find()) {
                    list.add(i);
                }
            }
        }
        Collections.sort(list);
        //System.out.println(list);
        for ( int i = 0 ; i < list.size() ; i++ ) {
            System.out.println(list.get(i));
        }
    }
}