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