input: Write a python function to reverse the words in a string.
  assert ReverseString("Hello World").reverse() == "World Hello"
  assert ReverseString("The quick brown fox").reverse() == "fox brown quick The"
  assert ReverseString("Python is fun").reverse() == "fun is Python"
output: def ReverseString(s):
      class Reverse:
          def __init__(self, s):
              self.s = s
          
          def reverse(self):
              return ' '.join(reversed(self.s.split()))
      
      return Reverse(s)