5. Write a function that takes two lists of integers and returns a list containing tuples with corresponding elements from both the lists. For example - f ([1, 2, 3], [4, 5, 6]) -> [(1, 4), (1,5), (1,6), (2, 4), (2, 5), (2, 6), (3, 4), (3 ,5), (3, 6)]. If either list is null, the result is null. The lists do not have to be the same length.

def corresponding_of_lists(lst1, lst2):

   c = ""

   corresponding_list = []

   if (lst1 is None) or (lst2 is None):

       return None

   else:

       for i in lst1:

           for j in lst2:

               c = "(" + str(i) + "," + str(j) + ")"

               corresponding_list.append(c)

   return corresponding_list

Explanation:

- Create a function called corresponding_of_lists that takes two lists as parameter

- Initialize an empty list to hold the corresponding values

- Check if any of the lists are null, if they are return None

- Otherwise, get the corresponding elements and put them into the corresponding_list

Return the corresponding_list