input: Write a function to take two matrices, A and B, and return a matrix C where each element is the product of the corresponding elements of A and B. If the dimensions of the two matrices are not compatible for element-wise multiplication, return "Element-wise multiplication not possible".
  assert matrixElementWiseProduct([[3, 4], [1, 2]], [[7, 5], [0, 1]])==[[21, 20], [0, 2]]
  assert matrixElementWiseProduct([[1, 2], [3, 4]], [[2, 3], [4, 5]])==[[2, 6], [12, 20]]
  assert matrixElementWiseProduct([[1, 2]], [[3, 4, 5], [6, 7, 8]])=="Element-wise multiplication not possible"
  assert matrixElementWiseProduct([], [])==[]
output: def matrixElementWiseProduct(A, B):
      if len(A) != len(B) or any(len(rowA) != len(rowB) for rowA, rowB in zip(A, B)):
          return "Element-wise multiplication not possible"
      return [[A[i][j] * B[i][j] for j in range(len(A[0]))] for i in range(len(A))]