using System;
class Program {
    static void Main(string[] args) {
        //入力
        string s = Console.ReadLine();
        string[] t = s.Split(' ');
        //数字の割り当て
        int a = int.Parse(t[0]);
        int b = int.Parse(t[1]);

        //出力
        for (int i = a; i <= b; i++) {
            if (i % 3 == 0 || i / 1000000000 == 3 || i / 100000000 == 3 || i / 10000000 == 3 || i / 1000000 == 3 || i / 100000 == 3 || i / 10000 == 3 || i / 1000 == 3 || i / 100 == 3 || i / 10 == 3 || i % 10 == 3) {
                Console.WriteLine(i);
            }
        }
    }
}