I am adding two random integers r_1 and r_2. If r_1=0 then n_1=-20. If r_2=0 then n_2=20.

This means that my correct answer could be r_1 + r_2 or n_1 + r_2 or r_1 + n_2 or n_1 + n_2.

How do I code that the correct answer could be any of these four situations.

Screen 4

Thanks