How to configure ssl for 3000 sub domains at different levels?

Question

Digital certificates

Good afternoon.
There is such an unusual scheme for the client domains of the form:
sub1.sub2.sub3.domain.com
All combinations of sub1 sub2 sub3 ~ 3000
*.sub2.sub3.domain.com - 100
sub1.sub2.*.domain.com - 19
you need to configure ssl to all domains.
Of course, you can try to order 3000 certificates in letsencrypt.com, but I'm afraid that they will be banned :-)
Are there any other options?

Answer 1

https://www.google.com.ua/search?q=ssl+wildcard

Answer 2

There is a discussion about
security.stackexchange.com/questions/10538/what-ce...