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: Citigroup Job Changes May Be Dress Rehearsal for Top Post in &lt;b&gt;...&lt;/b&gt; Citigroup said yesterday that Sallie L. Krawcheck, the former equity analyst recruited to the bank to clean up its research department, would become its chief financial officer.
