Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't stupid

how to say that, I paid about 70 dollars for this version,but I just found the hardcover version only need 60 dollars at the same shop(amazon).BTW, I found that this version is internation version after I reveived it. -_-!! the international version only need 40 dollars at other web site.so I would suggest buy the hardcover version!!!