0(0,3):  0  0  [i1,i1]  1  2   (4,*)  (3,*)   
1(1,3):  0  0  [i1,ic]  0  1   (4,*)  (*,*)   
2(2,3):  0  0  [ic,i1]  2  0   (*,*)  (3,*)   
3(3,2):  1  1  [C+,r1]  5  3   (*,*)  (0,2)   2
4(4,1):  1  1  [r1,C+]  4  5   (0,1)  (*,*)   1
5(5,0):  2  1  [C-,C-]  3  4   (*,*)  (*,*)   1,2,1