1.  
 
 


















    










    
   
 





























    

   


 

2.   




        


























 













































 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 

3.   









   







    
   







  











    

   
   



      
    






    











     














    
    




















     









   


     
   


















    
    






     









   

    
   










     

    
    










   


























     




    


     



































4.   










 



    





     





















































































    






















































     










    




























   











     

      








    













   










