input: 
  def create_3_layer_ann():
      """Create a 3-layer artificial neural network using Python and print the outcome.
      Input: None
      Output: 
      array([0.65])
      """
  
      import numpy as np
  
      # define the 3 layers #
      input_layer = np.array([2, 3])
      hidden_layer = np.array([[0.1, 0.4],
                               [0.8, 0.6],
                               [0.3, 0.9]])
      output_layer = np.array([0.3, 0.7])
      
      # compute the output of the 3-layer network #
      hidden_layer_output = np.dot(input_layer, hidden_layer)
      output = np.dot(hidden_layer_output, output_layer)
      
      print(output)
  
output:     import numpy as np
  
      # define the 3 layers #
      input_layer = np.array([2, 3])
      hidden_layer = np.array([[0.1, 0.4],
                               [0.8, 0.6],
                               [0.3, 0.9]])
      output_layer = np.array([0.3, 0.7])
      
      # compute the output of the 3-layer network #
      hidden_layer_output = np.dot(input_layer, hidden_layer)
      output = np.dot(hidden_layer_output, output_layer)
      
      print(output)