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