import java.util.Scanner;

public class SekainoNantoka{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();

        for(int i= A; i<=B; i++){
            if(i%3==0 || String.valueOf(i).matches(".*3.*")){
                System.out.println(i);
            }
        }
    }
}