Given an integer N. Your task is to identify the pattern from the Examples and print the pattern.

Example 1:
Input:
N = 4
Output:
4444444
4333334
4322234
4321234
4322234
4333334
4444444
Example 2:
Input:
N = 3
Output:
33333
32223
32123
32223
33333

Your Task:
You don't need to read input or print anything. Your task is to complete the function interestingPattern() which takes an Integer N as input and returns a vector of strings where each line representins each line of the pattern. For example, if N = 3, you have to return a vector v = {"33333", "32223", "32123", "32223", "33333"}.

Expected Time Complexity: O(N)
Expected Auxiliary Space: O(N)

Constraints:
1 <= N < 10

见题面

见题面