public class Main {
    
    /** Creates a new instance of Main */
    public Main() {
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        
        String str = "Yellow Fever";
        
        for (int i=0; i<=str.length(); i++)
        System.out.println(str.substring(0,i));
        
        
    }
    
}