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: Putin moves to strengthen Kremlin's grip on power following terrorist attacks (Canadian Press) Canadian Press - MOSCOW (AP) - Responding to a string of deadly terror attacks, President Vladimir Putin on Monday moved to significantly strengthen the Kremlin's grip on power with new measures that include the naming of regional governors and an overhaul of the electoral system.
