matrix := [
[0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0],
[0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0],
[8,11,5,14,5,14,6,5,13,14,2,10,10,17,9,10,9,0],
[0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0],
[7,12,6,13,12,7,18,11,1,8,3,1,9,16,18,0,10,10]
]*Z(19);