using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace test_2
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] n = Console.ReadLine().Split();
            int s = int.Parse(n[0]);
            int e = int.Parse(n[1]);

            for(int i = s; i <= e; i++)
            {
                if(i%3 == 0)
                {
                    Console.WriteLine(i);
                }
                else if (i.ToString().Contains("3"))
                {
                    Console.WriteLine(i);
                }
            }
        }
    }
}