import java.util.Scanner;
public class Main {

    public static void main(String[] args) {
	    Scanner sc = new Scanner(System.in);
        int low =sc.nextInt();
        int hig =sc.nextInt();

        for (int i=low;i<=hig;i++){
            if ((i%3)==0){
                System.out.println(i);
            }else if (String.valueOf(i).indexOf("3") >=0){
                System.out.println(i);
            }

        }
    }
}