text: print("sequencia de fibonacci!")
  
  sequencia = int(input("informe quantas vezes a sequncia ira aparecer:"))
  c = 0
  soma =0
  
  while c <= sequencia:
      if c == 0:
          print("{} ->".format(c),end=" ")
          c = c+1
      elif c == 1:
          print("{} ->".format(c),end="")
          c = c+1
      elif c == 2:
          soma = 1
          print("{} ->".format(soma),end="")
          soma =0
          c = c+1
      else:
          soma = soma + c
          print("{} ->".format(soma),end="")
          c = c+1
  