new_contents: # -*- coding: utf-8 -*- 
  import uuid
  
  def gen( num):
      assert isinstance(num, int) == True
      assert num > 0
      rst = []
      while True:
          temp = str(uuid.uuid1()).replace('-', '')
          if temp not in rst:
              rst.append(temp)
              num = num - 1
              if num == 0:
                  break
      return rst
  
  rst = gen(200)
  for i in rst:
      print i
  
subject: complete 0002