import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc=new Scanner(System.in);
        int num1=sc.nextInt();
        int num2=sc.nextInt();
        for(int i=num1;i<=num2;i++)
        {
            if(i%3==0)
            {
                System.out.println(i);
            }
            else if(i%10==3)
            {
                System.out.println(i);
            }
        }
    }
}