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

namespace yuki
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] str = Console.ReadLine().Split();
            int A = int.Parse(str[0]);
            int B = int.Parse(str[1]);
            string str2;

            while (A <= B)
            {
                if (A % 3 == 0)
                {
                    Console.WriteLine(A);
                    A++;
                    continue;
                }

                str2 = A.ToString();
                if (str2.Contains('3'))
                {
                    Console.WriteLine(A);
                    A++;
                    continue;
                }

                A++;
            }
        }
    }
}