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""" Challenge 160 Task 1"""
from num2words import num2words
def four_magic(what: int) -> str:
"""Do the conversion magic"""
output = []
while 1:
new_num = len(num2words(what))
if what == 4:
output.append(num2words(what) + " is magic.")
break
output.append(num2words(what) + " is " + num2words(new_num))
what = new_num
out_str = ", ".join(output)
return out_str.capitalize()
assert four_magic(5) == "Five is four, four is magic."
assert four_magic(7) == "Seven is five, five is four, four is magic."
assert four_magic(6) == "Six is three, three is five, five is four, four is magic."
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