         
1.              
   1       
2       
3         
2.              
1             
2         
3         
3.                 
            
1.             
1      
2  
2.          
1    
2     
3    
3.           
1        
2      
3        
4.            
1     
2       
5.           
1      
2      
3      
4      
           
1.     
2.    
3.   
4.   
5.   
6.      
            
1.     
2.      
3.     
4.     
5.       
6.     
           
1.        
2.    
3.    
4.    
5.    
6.    
7.    
8.    
9.    
10.    
11.       
12.        
13.    
14.     
15.    
16.    
17.    
18.       
19.       
20.    
21.       
22.     
           