matrix := [
[0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0],
[2,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,5,2,2,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,5],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0],
[0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,2,0,0,2,0,0,0,0],
[0,5,0,5,0,0,0,2,0,0,0,0,0,0,0,0],
[5,0,5,0,0,0,0,5,0,0,0,0,0,0,0,0],
[0,0,5,5,5,5,0,0,0,0,0,0,5,0,0,2],
[0,0,0,0,0,2,0,0,0,0,0,0,0,0,2,0],
[2,0,2,0,0,5,0,0,5,5,0,0,0,5,5,0],
[0,0,5,5,5,0,5,0,0,0,2,0,5,0,0,0]
]*Z(7);