This is a programming problems: Using Python to solve the problems, and output' screenshot are need for all the problems: You work for an on-line game site. Your job is to develop a program that accepts a user name and password. Write a Python script that prompts users for a user name and password. a. The user name should be at least 6 characters long and is stored in a list such that it can't be used again. b. The password can only be validated if the following conditions are met: At least 1 letter between [a-z] and 1 letter between [A-Z]. At least 1 number between [0-9]. At least 1 character from [$#@]. Minimum length 6 characters. Maximum length 16 characters