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: Regis to Buy Hair Club for Men and Women Regis Corp., the world #39;s largest operator of hair salons, said Monday that it agreed to purchase Hair Club for Men and Women, a hair loss services company, for $210 million.
