Array in array?

Question

I want to be able to have a number system that can be modified, such as cars Skoda= 200 Toyota= 500, but i am having difficulty implementing this in an array. May you help me? I have a short explanation in the code
https://code.sololearn.com/WhE6IR51UQFN/?ref=app

Answer 1

https://code.sololearn.com/WxOuiCRqMhcO/?ref=app

Answer 2

Thank you!