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