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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _convert_number_to_subscript(num):
 """ Converts number into subscript input = ["a", "a1", "a2", "a3", "be2", "be3", "bad2", "bad3"] output = ["a", "a₁", "a₂", "a₃", "be₂", "be₃", "bad₂", "bad₃"] :param num: number called after sign :return: number in subscript """

        subscript = ''
        for character in str(num):
            subscript += chr(0x2080 + int(character))
        return subscript