matrix := [
[0,6,0,0,0,0,0,0,0,0,0,0],
[0,0,7,0,0,0,0,0,0,0,0,0],
[0,0,0,0,7,0,0,0,0,0,0,0],
[0,0,0,0,0,7,0,0,0,0,0,0],
[7,6,6,0,6,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,7,0,0,0],
[0,0,0,0,0,0,0,0,0,7,0,0],
[0,0,0,0,0,0,0,0,0,0,7,0],
[0,0,0,0,0,0,0,0,0,0,0,7],
[3,0,10,2,2,10,7,4,4,4,5,0],
[0,0,12,11,1,7,8,6,10,10,2,6],
[0,0,0,6,0,6,0,0,6,0,0,6]
]*Z(13);