Given a positive integer n, return the smallest fair integer that is greater than or equal to n.

An integer is considered fair if the total count of its even digits is equal to the total count of its odd digits.

Constraints:

• $1 \leq$ n $\leq 10^9$

Now, let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:

We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.

Implement your solution in the following coding playground.