input: Write a python function to create and display a bar chart using matplotlib.
  assert create_bar_chart([5, 8, 9, 10, 12]) is None
  assert create_bar_chart([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) is None
output: import matplotlib.pyplot as plt
  
  def create_bar_chart(values):
      plt.bar(range(len(values)), values)
      plt.xlabel('Index')
      plt.ylabel('Value')
      plt.title('Bar Chart')
      plt.show()