using System;

class Program
{
	static void Main ()
	{
		string[] nums = Console.ReadLine ().Split (' ');
		int first = int.Parse (nums[0]);
		int last = int.Parse (nums[1]);
		
		for (int i = first; i <= last; i++)
		{
			if (i % 3 == 0)
				Console.WriteLine (i.ToString ());
			else
			{
				char[] num_chars = i.ToString ().ToCharArray ();
				foreach (var c in num_chars)
				{
					if (c == '3')
					{
						Console.WriteLine (i.ToString ());
						break;
					}
				}
			}
		}
	}
}