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