matrix := [
[4,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[13,3,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0],
[0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0],
[0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0],
[2,16,12,11,15,4,12,1,11,5,16,3,7,13,7,15,2],
[6,1,9,12,13,12,8,15,13,2,8,8,9,10,1,16,15],
[14,0,7,15,10,9,3,4,5,9,13,16,3,3,8,10,13],
[0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0],
[10,8,4,16,16,7,12,9,10,7,5,10,2,15,9,12,3]
]*Z(17);