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