text: a = 10
  assert a == 10, 'The a\'s value is ten'
  a = 20
  assert a == 10, 'The a\'s value is ten'
  """
  Traceback (most recent call last):
    File "/Users/moqi/Documents/Code/automate-the-boring-stuff/c10/p176_test1030.py", line 4, in <module>
      assert a == 10, 'The a\'s value is ten'
  AssertionError: The a's value is ten
  """
  