import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;

class Main {
    public static void main(String[] args) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] input = br.readLine().split(" ");
        int a = Integer.parseInt(input[0]);
        int b = Integer.parseInt(input[1]);

        for(int i = a; i <= b; i++){
            if(i%3 == 0 || String.valueOf(i).contains("3")){
                System.out.println(i);
            }
        }

    }
}