matrix := [
[0,6,0,0,0,0,0,0,0,0,0,0,0,0,0],
[6,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,6,0,0,0,0,0,0,0,0,0,0,0],
[0,0,6,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,6,0,0,0,0,0,0,0,0,0],
[0,0,0,0,6,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,6,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,6,0,0,0,0,0],
[0,0,0,0,0,0,6,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,6,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,6,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,6],
[8,8,15,15,15,15,2,3,2,3,0,6,11,0,6],
[0,0,0,0,0,0,0,0,0,0,6,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,6,0,0,0]
]*Z(17);