A 
[[(0 0 0),(0 1 1)]
 [(1 0 2),(1 1 3)]][(0 0 0),(1 0 2)]
  A 
[[(1 2 3),(1 2 3)]
 [(1 2 3),(1 2 3)]][(1 2 3),(1 2 3)]
  AA 
[[[0,1],[0,1]]
 [[0,1],[0,1]]]
[0,1]
0
1
1
2