import java.util.Scanner;

public class Main{
    public static void main (String[] args) {
        Scanner sc = new Scanner(System.in);
        
        int A = sc.nextInt();
        int B = sc.nextInt();
        String iPlusAToString;
        for(int i=1; i<=B-A+1; i++){
            iPlusAToString = String.valueOf(i+A);
            if((i+A)%3 == 0 &&(i+A < B)){
                System.out.println(i+A);
            }else if(iPlusAToString.contains("3") &&(i+A < B) ) {
            	System.out.println(i+A);
            }
        }
    }
}