import java.util.Scanner;
import java.util.Arrays;

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++){
            if(i%3==0){
                System.out.println(i);
            }else if(Integer.toString(i).contains("3")){
                System.out.println(i);
            }
        }
        
    }
}