using System;

public class Hello
{
    public static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = int.Parse(line[0]);
        var b = int.Parse(line[1]);
        for (int i = a; i <= b; i++)
            if (i % 3 == 0 | i.ToString().Contains("3")) Console.WriteLine(i.ToString());
    }
}