import java.util.Scanner;
import java.util.ArrayList;
import java.lang.String;
import java.lang.Integer;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        Integer a = sc.nextInt();
        Integer b = sc.nextInt();
        
        for (int i = a; i <= b; i++) {
            boolean flag = false;
            int sum = 0;
            String[] aStr = a.toString().split("");
            for (int j = 0; j < aStr.length; j++) {
                int aInt = Integer.parseInt(aStr[j]);
                if (aInt == 3){
                    flag = true;
                }
                sum += aInt; 
            }
            if (!flag) {
                if (sum%3 == 0){
                    flag = true;
                }
            }
            if (flag){
                System.out.println(i);
            }
            a++;
        }
    }
}