human
Solve in Python:
In a string composed of 'L', 'R', and 'X' characters, like "RXXLRXRXL", a move consists of either replacing one occurrence of "XL" with "LX", or replacing one occurrence of "RX" with "XR". Given the starting string start and the ending string end, return True if and only if there exists a sequence of moves to transform one string to the other.

Example:

Input: start = "RXXLRXRXL", end = "XRLXXRRLX"
Output: True
Explanation:
We can transform start to end following these steps:
RXXLRXRXL ->
XRXLRXRXL ->
XRLXRXRXL ->
XRLXXRRXL ->
XRLXXRRLX

Note:

       1 <= len(start) = len(end) <= 10000.
       Both start and end will only consist of characters in {'L', 'R', 'X'}.

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Can you provide a the Python code you requested?
assistant
#Here is the Python code you requested.

class Solution:
     def isToeplitzMatrix(self, matrix):
         """
         :type matrix: List[List[int]]
         :rtype: bool
         """
         
         x, y = len(matrix[0]), len(matrix)
         
         for i in range(x - 1):
             for j in range(y - 1):
                 if matrix[j][i] != matrix[j+1][i+1]:
                     return False
         return True