text: # --------------
  # Code starts here
  class_1 = ['Geoffrey Hinton','Andrew Ng','Sebastian Raschka','Yoshua Bengio']
  class_2 = ['Hilary Mason','Carla Gentry','Corinna Cortes']
  new_class = class_1 + class_2
  print(new_class)
  new_class.append('Peter Warden')
  print(new_class)
  new_class.remove('Carla Gentry')
  print(new_class)
  # Code ends here
  
  
  # --------------
  # Code starts here
  courses = {'Math':65, 'English':70, 'History':80, 'French':70, 'Science':60}
  print(courses)
  total = courses['Math'] + courses['English'] + courses['History'] + courses['French'] + courses['Science']
  print(total)
  percentage = (total / 500) * 100
  print(percentage)
  # Code ends here
  
  
  # --------------
  # Code starts here
  mathematics = {'Geoffrey Hinton':78, 'Andrew Ng':95, 'Sebastian Raschka':65, 'Yoshua Benjio':50, 'Hilary Mason':70, 'Corinna Cortes': 66, 'Peter Warden':75}
  topper = max(mathematics, key = mathematics.get)
  print(topper)
  
  
  # Code ends here  
  
  
  # --------------
  # Given string
  topper = 'andrew ng'
  
  
  # Code starts here
  first_name = topper.split()[0]
  last_name = topper.split()[1]
  full_name = last_name + ' ' + first_name
  print(full_name)
  certificate_name = full_name.upper()
  print(certificate_name)
  
  # Code ends here
  
  
  