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