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