Definition: In this task, you're given a short article. Your job is to classify the article based on its category. Use the following classification labels, 0. World, 1. Sports, 2. Business, 3. Science or Technical. Label the text "0" if it contains information related to world. Label the text "1" if it contains information related to sports. Label the text "2" if it contains information related business. Label the text "3" if it contains science or technical related information. 
Input: Stores open doors to sales, surge Retailers opened their doors before the sun rose yesterday, the official start of the holiday shopping season, tempting early risers with specials on a variety of items including flat-screen TVs and toys.
