1 000      00         
 0 1 0   0 1 0 0   2  
0 1 1   0 0 1   0 1   
01 1 1   0 1 1   0 2  
0 1 1   0 1 1   0 0   
 0 1 1 0 1 1 1 1      
        1       1  2  
     0                
  0 0 1 0 1 1  10  2  
 0 0 1   0 0 0  0 0   
  0 1   1 1 0 1 1 1   
01 1 1   0 1 1 1 1    
0 1 1   1 0 0  1   2  
 0 1 1   0 1 1  0   0 
          1           
 0   1  1  11  0 1 0 0
  0 0 1 001  0  0  0 1
   0       1   1      
  1 0    01           
 2 2  2 2   2  00  2 2
             0        
               01  2