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]);

          for (int i = A; i <= B; i++)
          {
              if (i % 3 == 0)
              {
                  Console.WriteLine( i);
                  continue;
              }
            if (i.ToString().Contains('3'))
            {
                      Console.WriteLine( i);
                      continue;
                  
              }
          }
          Console.ReadKey();
    }
}