[0, 0, 0, 0, 0, 0, 0, 0, 0]
                          
0
[4, 4, 4, 4, 4, 4, 4, 4, 4]
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
 N  N  N  N  N  N  N  N  N

1
[4, 4, 4, 4, 4, 4, 4, 4, 4]
[0, 1, 0, 0, 3, 1, 2, 0, 1, 4]
    N        N  N  N     N

2
[4, 4, 4, 4, 4, 4, 4, 4, 4]
[0, 1, 0, 0, 3, 1, 2, 0, 1, 4]
             N     N      

3
[4, 4, 4, 4, 4, 4, 4, 4, 4]
[0, 1, 0, 0, 3, 1, 2, 0, 1, 4]
             N            

4
[4, 4, 4, 4, 4, 4, 4, 4, 4]
[0, 1, 0, 0, 3, 1, 2, 0, 1, 4]
             N            

