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

namespace lecture
{
    class Program
    {
        bool check(int value)
        {
            if (value % 3 == 0 || value %10 == 3 || value /10 ==3)
            {
                return true;
            }
            return false;
        }
        static void Main(string[] args)
        {
            Program program = new Program();
            string[] row = Console.ReadLine().Split();
            int A = int.Parse(row[0]);
            int B = int.Parse(row[1]);


            for (int number = A; number <= B; number++)
            {
                if (program.check(number))
                {
                    Console.WriteLine(number);
                }
            }
        }
    }
}