Python

Problem 1. Write a function with the following description: def encxyntionlS, n): input: A string S consisting of only lower case letters and empty spaces of arbitrary length. n, an integer; output: A stringW-Tst:(n). T is a string which has been encrypted by replacing each letter in the string S by a letter n letters ahead in the alphabet. For example, ensryption.l"hello", returns "ifmmp xpsmel, that is, each letter has been replaced by remains unchanged. return helloo one letter ahead of it. Empty space character Note that the alphabet shifting is circular. Shifting z by 1 letter gives a. Problem 2. Write a function with the follwoing description: def decryption (W) input: A string W, encrypted as described in Problem 1; output: Based on the trailing integer in W, return the original content of the string S. For example, desryption.l"ifmme xpsmel") returns "hello world