matrix := [
[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],
[0,0,0,10,0,0,0,0,0,0,0,0,0],
[0,0,10,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,10,0,0,0,0,0,0,0],
[0,0,0,0,10,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,10,0,0,0,0],
[0,0,0,0,0,0,0,0,0,10,0,0,0],
[0,0,0,0,0,0,10,0,0,0,0,0,0],
[0,0,0,0,0,0,0,10,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,10,0,0],
[18,7,1,9,15,11,11,8,3,13,15,13,2],
[0,7,15,3,9,15,18,16,11,18,8,13,6]
]*Z(19);