0( 0,6):   1   2    ( 4, *)  ( 6, *)    [i1,i1]  0  
 1( 1,6):   0   1    ( 4, *)  ( *, *)    [i1,ic]  0  
 2( 2,6):   3   0    ( 5, *)  ( 6, *)    [i1,i1]  0  
 3( 3,6):   2   3    ( 5, *)  ( *, *)    [i1,ic]  0  
 4( 4,4):   4   8    ( *, *)  ( *, *)    [r1,C+]  1  1
 5( 5,4):   5   9    ( *, *)  ( *, *)    [r1,C+]  1  1
 6( 6,5):   7   6    ( *, *)  ( *, *)    [C+,r1]  1  2
 7( 7,2):   6   7    ( *, *)  (10,11)    [C-,i2]  2  121
 8( 8,3):   9   4    (10, *)  ( *, *)    [i1,C-]  2  212
 9( 9,3):   8   5    (10, *)  ( *, *)    [i1,C-]  2  212
10(10,0):  10  11    ( *, *)  ( *, *)    [r1,r2]  3  2121
11(10,1):  11  10    ( *, *)  ( *, *)    [rn,r2]  3  2121