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("{0}",i);
                continue;
            }
           if(i%10==3)
            {
                Console.WriteLine("{0}",i);
                continue;
            }
        }
        Console.ReadKey();
    }
}