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