How to find the maximum element first in one array, then in another and still use macros?

Question

assembler

Hello, I have a task:
given two arrays, one of 5 elements and the other of 4 elements.
it is necessary to find the maximum elements in each array and store them in
memory cells (using a macro);

as I understand it, you need to do all this with the help of cmp, but I never worked with MASM and assembler, please help me, how to solve it?