4
0
12
24
36
3 3 3 3 3 3
3 3 3 3 3 3
2 2 2 2 2 2
2 2 2 2 2 2
1 1 1 1 1 1
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0