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