input: Write a python function to extract 'name' and 'age' from CGI form data.
  assert extract_form_data(cgi.FieldStorage()) == ('Alice', '30')
  assert extract_form_data(cgi.FieldStorage()) == ('Bob', '25')
  assert extract_form_data(cgi.FieldStorage()) == ('Charlie', '40')
output: def extract_form_data(form):
      name = form.getvalue('name')
      age = form.getvalue('age')
      return name, age