using System;

class Program
{
    static void Main(string[] args)
    {
        string line = System.Console.ReadLine().Trim();
        string[] Data = line.Split(' ');
        long A = long.Parse(Data[0]);
        long B = long.Parse(Data[1]);

        for(long i= A;i<= B;i++)
        {
            if(i%3 ==0)
            {
                Console.WriteLine(i);
            }
            else if(i.ToString().IndexOf("3") != -1)
            {
                Console.WriteLine(i);
            }
        }       
    }
}