I am having some trouble with this practice problem.

code a function calledencrypt, that has one parameter s where s is a string and encrypt returns a string which is

the encrypted version of s.

• MAY NOT use any collection (such as a list/array, tuple, or dictionary) but only CAN USE collection of strings.

Program testing:

>>> encrypt("Hello, world")

'dHlerlolwo ,'

>>>> encrypt("1234")

'4132'

>>> encrypt("12345")

'51423'

>>> encrypt("1")

'1'

>>> encrypt("123")

'312'

>>> encrypt("12")

'21'

>>> encrypt("Secret Message")

'eSgeacsrseetM '

>>> encrypt(",'4'r")

"r,''4"