0( 0,6):  0  0  [i1,i1]   1   2   ( 6, *)  ( 4, *)   
 1( 1,6):  0  0  [i1,i1]   0   3   ( 6, *)  ( 5, *)   
 2( 2,6):  0  0  [ic,i1]   2   0   ( *, *)  ( 4, *)   
 3( 3,6):  0  0  [ic,i1]   3   1   ( *, *)  ( 5, *)   
 4( 4,4):  1  2  [C+,r1]   8   4   ( *, *)  ( 0, 2)   2
 5( 5,4):  1  2  [C+,r1]   9   5   ( *, *)  ( 1, 3)   2
 6( 6,5):  1  1  [r1,C+]   6   7   ( 0, 1)  ( *, *)   1
 7( 7,2):  2  1  [i2,C-]   7   6   (10,11)  ( *, *)   2,1,2
 8( 8,3):  2  2  [C-,i1]   4   9   ( *, *)  (10, *)   1,2,1
 9( 9,3):  2  2  [C-,i1]   5   8   ( *, *)  (10, *)   1,2,1
10(10,0):  3  3  [r2,r1]  11  10   ( 7, *)  ( 8, 9)   1,2,1,2
11(10,1):  3  3  [r2,rn]  10  11   ( 7, *)  ( *, *)   1,2,1,2