Return 'Hello, World!' if the input is a falsy value. Otherwise return a string based on the given input. Please refer to the example below for more information.
Sample Code:
def greetWho(s):
# Enter your logic here...
Examples:
Input: 'bOOp'
Output: 'Hello, Boop!'
Explanation: The input is a truthy value.
Input: ''
Output: 'Hello, World!'
Explanation: Empty string is a falsy value.
