matrix := [
[0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0],
[5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5],
[0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0],
[5,0,0,2,4,1,1,0,2,3,5,4,5,4,2,5],
[3,6,0,1,5,2,3,6,6,0,0,4,2,5,1,2],
[2,3,5,2,1,2,0,2,3,5,2,6,5,5,4,2],
[0,5,1,6,5,2,4,5,2,1,0,1,1,1,4,0],
[0,0,6,2,6,6,0,3,5,3,3,1,5,5,3,0],
[0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0]
]*Z(7);