matrix := [
[1,0,0,0,0,0,0,0,0,0,0,0],
[0,0,1,0,0,0,0,0,0,0,0,0],
[0,1,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,1,0,0,0,0,0,0,0],
[0,0,0,1,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,1,0,0,0,0,0],
[0,0,0,0,0,1,0,0,0,0,0,0],
[0,0,0,0,0,0,0,1,0,0,0,0],
[0,0,0,0,0,0,0,0,1,0,0,0],
[0,0,0,0,0,0,0,0,0,0,1,0],
[0,0,0,0,0,0,0,0,0,1,0,0],
[0,0,0,0,0,0,0,0,0,0,0,1]
]*Z(2);