Doubt in NumPy RGB Indexing

What is the value of the given Numpy Indexing (2,1,3) for below data?

Thanks for clarifying, sorry for not able to respond on time.
so, please provide explanation on this to.
Thanks

(2, 1, 3)
2 corresponds to 3rd layer layer, i.e. blue layer (0: red, 1: green and 2: blue)
1 corresponds to 2nd row in the blue layer (29, 30, 31, 32)
finally,
3 corresponds to 4th column in previous row: i.e. 32

So (2, 1, 3) represents 32.

Thanks for clarification.