text: numbers = []
  while True:
      number = (int(input('Type a number: ')))
      if number not in numbers:
          numbers.append(number)
      else:
          print('This number is already on the list')
      choice = (input('Want to continue: [Y/N] ')).upper().strip()[0]
      if choice == 'N':
          break
  numbers.sort()
  print(numbers)
  