0(0,6):  0  [i1,ic]  1  0   (2,*)  (*,*)  0  e
1(1,6):  0  [i1,ic]  0  1   (2,*)  (*,*)  0  e
2(2,5):  1  [r1,C+]  2  3   (0,1)  (*,*)  1  1
3(3,2):  2  [ic,C-]  3  2   (*,*)  (*,*)  1  2,1,2