input: Write a function to multiply two matrices A and B and return the resulting matrix C, where each element in C is the product of the corresponding elements in A and B.
  assert matrixElementMultiplication([[3, 4], [1, 2]], [[7, 5], [0, 1]])==[[21, 20], [0, 2]]
  assert matrixElementMultiplication([[2, 3], [4, 1]], [[1, 2], [3, 4]])==[[2, 6], [12, 4]]
  assert matrixElementMultiplication([[1, 0], [0, 1]], [[1, 0], [0, 1]])==[[1, 0], [0, 1]]
  assert matrixElementMultiplication([], [])==[]
output: def matrixElementMultiplication(A, B):
      if not A or not B:
          return []
      return [[A[i][j] * B[i][j] for j in range(len(A[0]))] for i in range(len(A))]