Given a number N, identify the pattern from the given Examples and print the Output.

Example 1:
Input:
N = 4
Output:
ABCD
E$$F G$$H
IJKL
Example 2:
Input:
N = 6
Output:
ABCDEF
G$$H I$$J
K$$L M$$N
OPQRST

Your Task:
You don't need to read input or print anything. Your task is to complete the function findThePattern() which takes an Integer N as input and returns a vector of strings where each line represents lines of the pattern. For example, if N = 4, the vector v = {"ABCD", "E$$F", "G$$H", "IJKL"}.

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

Constraints:
1 <= N <= 6

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