input: Write a function to multiply corresponding elements of two matrices A and B to produce a new matrix C. If the matrices are not of the same dimensions, return "Matrix multiplication not possible".
  
  def elementwiseMatrixMultiplication(A, B):
      if len(A) != len(B) or len(A[0]) != len(B[0]):
          return "Matrix multiplication not possible"
  
      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 elementwiseMatrixMultiplication([[3, 4], [1, 2]], [[7, 5], [0, 1]])==[[21, 20], [0, 2]]
  assert elementwiseMatrixMultiplication([[1, 2], [3, 4]], [[2, 3], [4, 5]])==[[2, 6], [12, 20]]
  assert elementwiseMatrixMultiplication([[1, 2]], [[3, 4]])==[[3, 8]]
  assert elementwiseMatrixMultiplication([[1, 2], [3, 4]], [[1, 2]])=="Matrix multiplication not possible"
output: def elementwiseMatrixMultiplication(A, B):
      if len(A) != len(B) or len(A[0]) != len(B[0]):
          return "Matrix multiplication not possible"
  
      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