matrix := [
[0,6,0,0,0,0,0,0,0,0],
[6,0,0,0,0,0,0,0,0,0],
[0,0,0,6,0,0,0,0,0,0],
[0,0,6,0,0,0,0,0,0,0],
[0,0,0,0,0,0,6,0,0,0],
[9,2,4,7,7,6,4,0,0,0],
[0,0,0,0,6,0,0,0,0,0],
[0,0,0,0,0,0,0,6,0,0],
[9,2,2,9,1,0,10,0,6,0],
[6,5,0,0,5,0,6,0,0,6]
]*Z(11);