matrix := [
[0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0],
[0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0],
[0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0],
[4,4,7,7,7,4,7,12,4,14,11,12,0,14,0,0,0,0],
[0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0],
[5,5,15,15,7,5,7,2,5,3,0,2,11,3,0,0,0,0],
[0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0],
[1,1,4,4,4,5,4,2,5,13,0,2,0,13,11,0,0,0],
[16,16,11,11,16,10,16,16,10,14,0,16,0,14,0,11,0,0],
[1,1,10,10,7,13,7,11,13,10,0,11,0,10,0,0,11,0],
[11,11,6,6,14,9,14,14,9,16,0,14,0,16,0,0,0,11]
]*Z(17);