text: def fatorial(num, ver=False):
      f = 1
      if not ver:
          for c in range(num, 0, -1):
              f *= c
          return f
      else:
          for c in range(num, 0, -1):
              f *= c
              print(c, end='')
              if c > 1:
                  print(' x ', end='')
              else:
                  print(' = ', end='')
          print(f)
          return f
  
  
  def dobro(num):
      return num * 2
  
  
  def triplo(num):
      return num * 3
  