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


class P
{
    static void Main(string[] args)
    {
        string[] CSL = Console.ReadLine().Split();
          int A = int.Parse(CSL[0]);
          int B = int.Parse(CSL[1]);
        int n = 0;
        string S_i = "";
          for (int i = A; i <= B; i++)
          {
            n = 0;
              if (i % 3 == 0)
              {
                  Console.WriteLine( i);
                  continue;
              }
            S_i = i.ToString();
             while(true)
            {
                if(S_i[n]=='3')
                {
                    Console.WriteLine(i);
                    break;
                }
                n++;
            }
          }
          Console.ReadKey();
    }
}