Dozens Question

[Ravenous Treasure]

Hoping somebody can tell me the odds of the below happening in 12 spins for dozens. Example below..doesn't matter what dozens you use. Just want to know the odds of four spins/dozens repeating the exact same the next four spins and then the same for a third time. Thanks for your time!

1 2 2 3
1 2 2 3
1 2 2 3

[Bigbroben]

=12/37^8 or 1/8169 times

[Ravenous Treasure]

=12/37^8 or 1/8169 times

Thank you!

[Mister Eko]

Now you have HG?

[Ravenous Treasure]

Now you have HG?

Doesn't exist..as I'm sure you already know.

[holy roller]

What are you trying to do with dozens? Im always interested in a dozens strategy. Thanks.