matrix := [
[0,0,6,0,0,0,0],
[0,0,0,6,0,0,0],
[6,5,0,6,0,0,0],
[6,0,5,6,0,0,0],
[0,0,0,0,0,0,6],
[5,7,3,1,9,6,4],
[5,0,0,5,5,0,5]
]*Z(11);