         
           
                                                                              
         2015   6  11          2     
                
               
                                            
                
                
             
              
            
      1                 
     2                                        100            1  10   30             3     10    30        40     10                             30   10   20   30                          
3          1    
4                                            
5           5                           
 
                                                    
                                               2015   6   7