text: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  def add_four(a):
      x = 2
  
      def add_some():
          print("x = " + str(x))
          return a + x
  
      return add_some()
  
  if __name__ == "__main__":
      print(add_four(5))
  