old_contents: import argparse
  import proxy
  import connection_controller
  
  def main():
      parser = argparse.ArgumentParser(description="")
      parser.add_argument("service", help="define which service to start: proxy,ss")
      parser.add_argument("--host", default="127.0.0.1")
      parser.add_argument("--port", type=int, default=5580)
      args = parser.parse_args()
      if args.service == "proxy":
          proxy.start_proxy_server(args.host, args.port)
      if args.service == "ss":
          connection_controller.start_server()
  
  if __name__ == "__main__":
      main()
  
new_contents: import argparse
  import proxy
  import connection_controller
  
  def main():
      parser = argparse.ArgumentParser(description="")
      parser.add_argument("service", help="define which service to start: proxy,cc")
      parser.add_argument("--host", default="127.0.0.1")
      parser.add_argument("--port", type=int, default=5580)
      args = parser.parse_args()
      if args.service == "proxy":
          proxy.start_proxy_server(args.host, args.port)
      if args.service == "cc":
          connection_controller.start_server()
  
  if __name__ == "__main__":
      main()
  
subject: update main function to start up connection controller with cc, not ss