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