text: cube = lambda x: pow(x,3)
  def fibonacci(n):   
      l=list()
      if n==0:
          l=[]
      elif n==1:
          l=[0]
      else:
          l=[0,1]
          for i in range(2,n):
              num=l[i-1]+l[i-2]
              l.append(num)
      return 1
  