5A in Python language please: (5) def add_chars (some_list, some_str):Special Restrictions: You are not allowed to use loops. You must use recursion for this function.aracters of some_str to some_list in the following order and return the list:[1st element of some_list, 1st character of some_str, 2nd element ofsome list, 2nd character of some_str, 3rd element of some_list, 3rdcharacter of some_str, .............]For example, if some_list = [1, 2, 3, 4, 5] and some_str = "hello", the returnedlist is [1, 'h', 2, 'e', 3, '1', 4, '1', 5, 'o'].Note that, some_list and some_str can have unequal length.• If length of some_str is less than length of some_list, after adding all the charactersof the some_str, we leave the rest of the some_list as-is.For example, if some_list = [1, 2, 3, 4, 5] and some_str = "hel", thereturned list is [1, 'h', 2, 'e', 3, '1', 4, 5].• If length of some_list is less than length of some_str, we do not add the extracharacters of some_str to the some_list.For example, if some_list = [1, 2, 3] and some_str = "hello", the returnedlist is [1, 'h', 2, 'e', 3, '1'].Parameters: some_list (a list), some_str (a string)Return value: A list as described aboveExamples:add_chars ([1, 2, 3, 4, 5], "hello")→ [1, 'h', 2, 'e', 3, '1', 4, '1', 5, 'o']add_chars ([1, 2, 3], "hello")→ [1, 'h', 2, 'e', 3, '1']add_chars ([1, 2, 3, 4, 5], "hel")→ [1, 'h', 2, 'e', 3, '1', 4, 5]add_chars ([], "hello")→ [] User Defined Functions and RecursionBackgroundThe purpose of this Programming is to practice writing function definitions, using functions inside ofother functions, and using recursion to solve complex problems.RestrictionsAny function that violates the following:• You are not allowed to import anything•You are not allowed to use the global keyword, nor should you have any global variables. (Inother words, do not create any variables outside of a function definition.You are not allowed to use slicing (except for the 5th function add_chars)•No built-in function except round(), range(), and len() is allowed• From list methods, you are allowed to use .append(), .insert(),.remove(), or del•From dictionary methods, you are allowed to use .keys(), .values(),.items()TestingIn addition to the examples in the tester file, you should also devise your own test cases for your code.Develop additional test cases, on your own, to make sure that you haven't missed anything (empty lists,different sized lists, etc) and your code is correct. The goal is to keep your focus on writing correct code.FunctionsIn this Programming, you will be writing and calling a handful of functions (five). From the description,you will generate the signature, and function body for each function. (The examples can give you hintsabout the signatures!)

Question

5A in Python language please: (5) def add_chars (some_list, some_str):Special Restrictions: You are not allowed to use loops. You must use recursion for this function.aracters of some_str to some_list in the following order and return the list:[1st element of some_list, 1st character of some_str, 2nd element ofsome list, 2nd character of some_str, 3rd element of some_list, 3rdcharacter of some_str, .............]For example, if some_list = [1, 2, 3, 4, 5] and some_str = &#34;hello&#34;, the returnedlist is [1, 'h', 2, 'e', 3, '1', 4, '1', 5, 'o'].Note that, some_list and some_str can have unequal length.• If length of some_str is less than length of some_list, after adding all the charactersof the some_str, we leave the rest of the some_list as-is.For example, if some_list = [1, 2, 3, 4, 5] and some_str = &#34;hel&#34;, thereturned list is [1, 'h', 2, 'e', 3, '1', 4, 5].• If length of some_list is less than length of some_str, we do not add the extracharacters of some_str to the some_list.For example, if some_list = [1, 2, 3] and some_str = &#34;hello&#34;, the returnedlist is [1, 'h', 2, 'e', 3, '1'].Parameters: some_list (a list), some_str (a string)Return value: A list as described aboveExamples:add_chars ([1, 2, 3, 4, 5], &#34;hello&#34;)→ [1, 'h', 2, 'e', 3, '1', 4, '1', 5, 'o']add_chars ([1, 2, 3], &#34;hello&#34;)→ [1, 'h', 2, 'e', 3, '1']add_chars ([1, 2, 3, 4, 5], &#34;hel&#34;)→ [1, 'h', 2, 'e', 3, '1', 4, 5]add_chars ([], &#34;hello&#34;)→ [] User Defined Functions and RecursionBackgroundThe purpose of this Programming is to practice writing function definitions, using functions inside ofother functions, and using recursion to solve complex problems.RestrictionsAny function that violates the following:• You are not allowed to import anything•You are not allowed to use the global keyword, nor should you have any global variables. (Inother words, do not create any variables outside of a function definition.You are not allowed to use slicing (except for the 5th function add_chars)•No built-in function except round(), range(), and len() is allowed• From list methods, you are allowed to use .append(), .insert(),.remove(), or del•From dictionary methods, you are allowed to use .keys(), .values(),.items()TestingIn addition to the examples in the tester file, you should also devise your own test cases for your code.Develop additional test cases, on your own, to make sure that you haven't missed anything (empty lists,different sized lists, etc) and your code is correct. The goal is to keep your focus on writing correct code.FunctionsIn this Programming, you will be writing and calling a handful of functions (five). From the description,you will generate the signature, and function body for each function. (The examples can give you hintsabout the signatures!)

Accepted Answer

Define add_chars() function to add characters in the lists.

Define add_chars_helper() inner…