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