""" testing....

word_to_num('one hundred and forty two')

word_to_num('three thousand four hundred and seventy four')

word_to_num('thirty five thousand seven hundred eighty nine')

word_to_num('three hundred thousand four hundred forty two')

word_to_num('three million') ##

word_to_num('three billion') ##

word_to_num('three thousand') ##

word_to_num('three hundred thousand four hundred') ##

word_to_num('thirty five thousand seven hundred eighty one')

word_to_num('one hundred twenty three million four hundred fifty six thousand seven hundred and eighty one')

word_to_num('four hundred and forty three thousand') ##

"""