using System;

public class Program {
  public static void Main() {
    string[] input = Console.ReadLine().Split(' ');
    int start = int.Parse(input[0]);
    int end = int.Parse(input[1]);
    for (int i = start; i <= end; i++) {
      if (i % 3 == 0 || i.ToString().Contains("3")) {
        Console.WriteLine(i);
      }
    }
  }
}