1

New to code golf and enjoying it. I have a problem that I cannot figure out and am curious if others can solve it.
Start with two dictionaries, y and z:
y = {'a': 1, 'c': 3, 'e': 5, 'g': 7}
z = {'b': 2, 'd': 4, 'f': 6, 'h': 8}
y and z both map length-1 strings to numbers, where each number is...