matrix := [
[0,0,3,0,0,0,0,0],
[0,0,0,3,0,0,0,0],
[2,1,3,0,0,0,0,0],
[0,0,0,0,3,0,0,0],
[0,0,0,0,0,3,0,0],
[0,0,0,0,0,0,3,0],
[0,0,0,0,0,0,0,3],
[0,2,2,0,0,2,4,4]
]*Z(5);