matrix := [
[0,5,0,0,0,0,0,0,0],
[0,0,0,5,0,0,0,0,0],
[3,0,1,5,0,0,0,0,0],
[0,0,0,0,5,0,0,0,0],
[0,0,0,0,0,5,0,0,0],
[0,0,0,0,0,0,5,0,0],
[0,0,0,0,0,0,0,5,0],
[0,0,0,0,0,0,0,0,5],
[0,0,6,2,3,1,5,4,6]
]*Z(7);