     30 
1.                                                                        
2.                  
                                    
3.                                                                                                    
4.                                                           
              
5.                                                                
                                                                                                 
6.1 9 0 3                          
            
7.                   
                                   
           
8.                                   
                                             
  20 
1.                                      
2.                              
3.                          
  
4.                                   
5.                           
6.                   
7.                             
8.                       
9.                      
10.                    
    
1.                              4     12  
2.                                                                            2      1   8  
3.                        10  
4.                  5  
      15  
                 4                   6                5  