text: class UncertaintyException(Exception):
      def __init__(self):
          Exception.__init__(self, 'Number of deleted candies exceeds the desired maximun ratio (known vs. unknown ' \
                                   'candies)')
  
  
  class WrappedChocolateException(UncertaintyException):
      def __init__(self):
          UncertaintyException.__init__(self)
  
  
  class ChocolateWithUnknown(UncertaintyException):
      def __init__(self):
          UncertaintyException.__init__(self)