How to make a calculator that will give the result in words?

Question

Python

How to make a calculator that can subtract and add numbers from 0 to 63. It is desirable that it accepts values ​​in the form of text, for example: 10+1 or 59-5. And he gave out the answers in text, in English: for example, "Eleven" or "Fifty four".
I have already made it output numbers from 0 to 20 and after 10 words, but how to make it output "Fifty four" I can't figure out.

def counter():
    words = {0: 'zero', 1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight',
             9: 'nine', 10: 'ten', 11: 'eleven', 12: 'twelve', 13: 'thirteen', 14: 'fourteen', 15: 'fifteen',
             16: 'sixteen', 17: 'seventeen', 18: 'eighteen', 19: 'nineteen', 20: 'twenty', 30: 'thirty', 40: 'forty',
             50: 'fifty', 60: 'sixty'}
    string = input()
    result = eval(string)
    if result >=0 and result <= 63:

        if result >= 0 and result <= 20:
            for k, v in words.items():
                if k == result:
                    print(v)

        elif result >= 21 and result <= 63:
            for k, v in words.items():
                if k == result:
                    print(v)

                # else:
                #     dozen = (result - (result % 10))
                #     units = result % 10
                #     if dozen == k and units == k:
                #         print(v + v)
                #         print(dozen + units)


counter()

Answer 1

There are up to a hundred, you can just take a dozen and the remainder, well, write out

result = 43
if result > 20 and result < 63:
    if result in words:
        print(words[result])
    else:
        q, mod = divmod(result, 10)
        print(words[q*10], words[mod])

Answer 2

well, how to make a calculator, I think you’ll find it in google And
look at the translation of a number from numbers into words in a turnip
yes there on js but the logic is the same
https://github.com/Vorfall/human-readable-number/b...

Answer 3

There is an inflect library that can do this - you can see how it's done there