import java.util.*;
class No207{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        Long a = sc.nextLong();
        Long b = sc.nextLong();
        for (Long i = a; i < b; i++){
            if (i % 3 == 0){
                System.out.println(i);
            } else {
                if (String.valueOf(i).indexOf("3") != -1) {
                   System.out.println(i);
                }
            }
        }
    }
}