matrix := [
[4,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[6,5,1,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0],
[0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5],
[5,0,4,2,1,4,5,4,2,2,0,0,3,2,6,3,0,0,3,3],
[3,5,1,3,3,1,1,3,1,2,3,5,1,0,6,1,0,5,2,2],
[4,1,4,3,2,2,5,2,3,6,0,2,2,5,0,2,0,0,0,6],
[5,4,1,3,0,4,5,5,5,5,5,6,5,2,3,2,2,6,4,5],
[5,2,6,0,6,5,2,4,3,6,3,0,0,5,3,6,0,0,1,2],
[0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0]
]*Z(7);