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}
  total= sum(courses.values())
  print(total)
  percentage = total / 5
  print(percentage)
  # Code ends here
  
  
  # --------------
  # Code starts here
  mathematics = {'Geoffrey Hinton':78,'Andrew Ng':95,'Sebastian Raschka':65,'Yoshua Banjio':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'
  first_name, last_name = topper.split()
  full_name = last_name +" "+ first_name
  print(full_name)
  certificate_name = full_name.upper()
  print(certificate_name)
  
  
  # Code ends here
  
  
  