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Your task is to make a function that can take any non-negative integer as an argument and return it with its digits in descending order. Essentially, rearrange the digits to create the highest possible number.
Examples:
Input: 42145 Output: 54421
Input: 145263 Output: 654321
Input: 123456789 Output: 987654321
Solution:
def descending_order(num):
return int("".join(sorted([i for i in str(num)], reverse=True)))
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