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

namespace pj1
{
    class Program
    {
        bool hasThree(int value)
        {
            string str = value.ToString();
            for(int i=0;i < str.Length;i++)
            {
                if(str[i] == '3')
                {
                    return true;
                }
            }
            return false;
        }

        bool check(int value)
        {
            if(value % 3 ==0 || hasThree(value))
            {
                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);
                }
            }

        }
    }
}