import java.util.Scanner;
public class Main {
    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++){
            String s=String.valueOf(i);
            if(i%3==0){
                System.out.println(i);
            }
            else if (s.indexOf("3")==-1);
            else System.out.println(i);
        }
    }
}