just pay for the number dealer. It takes the first day to find it, and it will probably cost the dealer 2-3.

of course, you can go to the queue the night before. The expert number itself is not expensive, only a dozen dollars.

you can also register for special needs clinics, and the registration fee is about 2-3. But it still costs so much to make an appointment for a follow-up visit. It's cheaper to make an appointment for a follow-up visit by ordinary number.