How can I find my schools Adobe Premiere/Photoshop Elements 2020 key?

I know my school will sometimes use last year's CC versions because they're familiar with it, and it's been tested to work with what they want to teach, so it won't just break or not function as expected out of nowhere. Now why they use 2020's version in 2023 is beyond me, stuff generally does not change drastically in 3 years.