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