matrix := [
[10,9,0,0,0,0,0,0,0,0,0,0,0],
[0,0,10,0,0,0,0,0,0,0,0,0,0],
[0,9,9,0,0,0,0,0,0,0,0,0,0],
[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],
[0,0,0,0,0,0,0,10,0,0,0,0,0],
[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],
[0,0,0,0,0,0,0,0,0,0,0,10,0],
[0,0,0,0,0,0,0,0,0,0,0,0,10],
[0,0,0,0,0,10,0,0,0,0,0,0,0],
[0,13,9,6,17,0,15,9,0,9,10,10,10],
[0,15,6,17,15,9,6,10,10,10,0,9,0]
]*Z(19);