text: while True:
      tab = int(input('Quer ver a tabuada de qual valor? '))
      print('-' * 50)
      if tab < 0:
          break
      for t in range(1, 11):
          print(f'{tab} X {t} = {tab * t}')
      print('-' * 50)
  print('PROGRAMA TABUADA ENCERRADO. Volte sempre!')
  