Given two integers n and k, return an array of all integers of length n such that the absolute difference between every two consecutive digits is equal to k.

You may return the answer in any order.

Note: Every integer in the answer must have exactly n digits and cannot contain leading zeros.

Constraints:

• $2 \leq$ n $\leq 9$

• $0 \leq$ k $\leq 9$

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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.