Chewbacca and number

#1

please send me the logic if you are not giving whole code that will be fine too but plz atleast send logic

#2

Logic:
if digit is >5 flip that digit otherwise don’t flip
also check some corner cases
a) first digit should not be zero so if first digit is 9 then it should remain unchanged
b) if number is 0 only then output should be 9, not 0.

Reference Code

#3

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