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=(sum(courses.values())/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
  
  
  