0                
              0                
              0                
            0 0 0              
            0 0 0              
            0 0 0              
      1     0 0 0     1        
      1   0 0 0 0 0   1        
1     0 2 0 0 1 0 0 2 0     1  
1     2 0 0 1 1 1 0 0 2     1  
0     0 0 0 1 0 1 0 0 0     0  
0   0 0 0 0 0 0 0 0 0 0 0   0  
0 0 0 0 0 1 0 0 0 1 0 0 0 0 0  
0 0 0   1 1 0 0 0 1 1   0 0 0  
0 0     1 1   0   1 1     0 0  
0             0             0  


soon...