import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import static java.lang.System.in;


public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String[] inputs = reader.readLine().split(" ");
        long A = Long.parseLong(inputs[0]);
        long B = Long.parseLong(inputs[1]);
        for (long i = A; i <= B; i++) {
            if (i % 3 == 0 || containsThree(i)) {
                System.out.println(i);
            }
        }
    }
    
    private static boolean containsThree(long n) {
        String ns = String.valueOf(n);
        for (int i = 0; i < ns.length(); i++) {
            if (ns.charAt(i) == '3') {
                return true;
            }
        }
        return false;
    }
}