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