Values based on three inputs

Trying to look up values based on three inputs:

Attached is the file:

Month Input, Column Input and Network Input are changeable based on user input, I am trying to get the desired output based on selection from A20, B20, C20 into cells G20, G21, G22 from row number 2 and corresponding values in H20, H21, H22 from the corresponding row based on the selection.

I have populated an example in the attached file.

Any help will be greatly appreciated. Thanks in advance.