2 Pairs 2 Lists

[deanhystad]

There are only two numbers that add up to 24; 4 + 20, and they are both in the same list. You cannot add a number from list1 to a number from list2 to get 24. If you are just looking for two different numbers and the numbers can be from either list, the answer is 4 and 20

To solve the answer using one number from each list:

for a in list1:
    for b in list2:
        if a + b == 24:
            print(f'{a} + {b} = 24')

Tp solve for any combination of numbers in either list:

numbers = list1 + list2
for a in numbers:
    for b in numbers:
        if a + b == 24:
            print(f'{a} + {b} = 24')

This could be made more efficient if the lists were large or if you wanted to avoid double answers (4, 20 and 20, 4)