matrix := [
[0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0],
[0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0],
[0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0],
[4,7,3,8,4,0,7,0,9,0,0,2,0,0,6,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0],
[4,7,3,8,0,4,0,7,2,1,9,9,0,10,0,2,6,0,0,0],
[1,10,3,8,10,1,1,10,4,9,9,7,3,2,0,2,0,6,8,0],
[0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0],
[6,5,7,4,9,2,2,9,3,9,4,8,10,2,0,7,0,0,1,6]
]*Z(11);