       


                      ○     ×             
       ○×○○×                           
       ×○○×○                
       ○××○×                     
       ×○×○○                      
        ○×○××                      
       ○×○×○                          
       ×○×○×                           
       ××○○×                
       ○○××○                       
       ××○×○                                        ○○×○×                        
      ○○××○                       
      ××○××               
       ○○○×○                   
       ×××○×                    
      ×○○○○                   
      ○××××                 
       ××○○○                   
       ○○○××                          
        ○○×××                   
       ×××○○                 
       ○○○○×                      
      ×××××                        
      ○○○○○                         
       ×○○○×                        
      ○×××○                      
      ×○○××                      
        ○××○○                         
        ×○×××              
         ○×○○○                       
        ×○××○           