I have four Mailchimp lists. 1. For all members, which they

Hi

I have four Mailchimp lists.
1. For all members, which they will not be unsubscribed from when canceling membership subscription.

2. Three other Mailchimp lists... One for each type of Membership subscription I have on my site.
The member is removed from these lists, when their subscription is cancelled.

Right now I set joining and leaving ping for these three membership subscriptions.

How can I let all the members who is signing up for a subscription, automatically joining the first list for all members?

As I can only select one joining ping for each subscription.
Will I then be able to fix this my adding some code to functions.php?