new_contents: #!/usr/bin/env python
  
  def fibonacci(n):
    a = 1
    b = 1
    c = None
    for i in xrange(2,n):
      c = a + b
      a = b
      b = c
      yield(c)
  
  if __name__=="__main__":
    for i,fib in enumerate(fibonacci(10000)):
      if len(str(fib)) >= 1000:
        print i+3
        break
  
subject: add problem 25