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