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
  new_class.append('Peter Warden')
  del new_class[5]
  print(new_class)
  
  
  
  # Code ends here
  
  
  # --------------
  courses = {'Math': 65,'English':70,'History':80,'French':70,'Science':60}
  total = sum(courses.values())
  percentage = (total/500*100)
  print(total,percentage)
  
  
  # --------------
  # 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}
  max_marks = max(mathematics.values())
  key_list=list(mathematics.keys())
  value_list=list(mathematics.values())
  topper = key_list[value_list.index(max_marks)]
  print(topper)
  
  
  
  
  # Code ends here  
  
  
  # --------------
  # Given string
  topper = 'andrew ng'
  first_name = topper.split(" ")[0]
  last_name = topper.split(" ")[1]
  full_name=last_name+" "+first_name
  certificate_name=full_name.upper()
  print(certificate_name)
  # Code starts here
  
  
  
  # Code ends here
  
  
  