import java.io.PrintWriter;
import java.util.*;

public class No0207 {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);

        int a = scanner.nextInt();
        int b = scanner.nextInt();

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