/*No.207 世界のなんとか*/
import java.io.*;
public class No207 {
	public static void main(String[] args) {
		String s_range,h_range[]=new String[2],s_check;
		int start,end,include_3;
		try(BufferedReader input =new BufferedReader(new InputStreamReader(System.in))){
			s_range=input.readLine();
			h_range=s_range.split(" ");
			start=Integer.parseInt(h_range[0]);
			end=Integer.parseInt(h_range[1]);
			for(int check=start;check<=end;check++){
				s_check=Integer.toString(check);
				include_3=s_check.indexOf("3");
				if(check%3==0||include_3!=-1){
					System.out.println(check);
				}
			}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}