input: Write a function to take two matrices, A and B, and produce a matrix C where each element is the product of the corresponding elements of A and B.
  
  def elementwiseMatrixProduct(A, B):
      if len(A) != len(B) or len(A[0]) != len(B[0]):
          return "Matrices must be of the same dimensions"
  
      C = [[0 for i in range(len(A[0]))] for j in range(len(A))]
  
      for i in range(len(A)):
          for j in range(len(A[0])):
              C[i][j] = A[i][j] * B[i][j]
  
      return C
  
  assert elementwiseMatrixProduct([[3, 4], [1, 2]], [[7, 5], [0, 1]]) == [[21, 20], [0, 2]]
  assert elementwiseMatrixProduct([[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]) == [[7, 16, 27], [40, 55, 72]]
  assert elementwiseMatrixProduct([[1]], [[0]]) == [[0]]
  assert elementwiseMatrixProduct([], []) == "Matrices must be of the same dimensions"
  assert elementwiseMatrixProduct([[1, 2]], [[3]]) == "Matrices must be of the same dimensions"
output: def elementwiseMatrixProduct(A, B):
      if len(A) != len(B) or len(A[0]) != len(B[0]):
          return "Matrices must be of the same dimensions"
  
      C = [[0 for i in range(len(A[0]))] for j in range(len(A))]
  
      for i in range(len(A)):
          for j in range(len(A[0])):
              C[i][j] = A[i][j] * B[i][j]
  
      return C