How to manipulate between lists and get results

[DeaD_EyE]

I think it's good to show the pythonic way.

spams = [2, 4, 2, 5]
eggs = [6, 4, 3, 2]
for spam, egg in zip(spams, eggs):
    print(spam, egg)

Read this: https://docs.python.org/3/library/functions.html#zip
To get an index, you can use enumerate.

If you have two lists with different sizes and want to have a default value, use itertools.zip_longest(*iterables, fillvalue=None).

zip_longest example:

from itertools import zip_longest


spams = [2, 4, 2, 5, 5, 6, 7, 1, 4, 5, 6]
eggs = [6, 4, 3, 2]
for spam, egg in zip_longest(spams, eggs, fillvalue=1):
    # 1 is the neutral element in multiplication or division
    # 0 is the neutral element in addition or subtraction
    print(f"{spam} * {egg} = {spam * egg}")

The f-string f"{spam} * {egg} = {spam * egg}" is new in Python 3.6.
It gives us one more method to format strings.