using System;
public class Program
{
    static void Main()
    {
    	string s = Console.ReadLine();
        string[] t = s.Split(' ');
        int a = int.Parse(t[0]);
        int b = int.Parse(t[1]);
		
		int j = 0;
		int k = 0;
		for(int i = a; i<b+1; i++){
			if(i%3==0){
				Console.WriteLine(i);
			}else{
				j = i ;
				k = j % 10;
				while(j>0 && k!=3){
					j = j/10;
					k = j%10;
				}
				if(k==3){
					Console.WriteLine(i);
				}
			}
		}
    }
}