The state is indicated as two numbers separated by a dash (e.g., B-G), where B indicates the boy's state, and G indicates the girl's state.
Values for B and G:
0 --> in sequence. 12 --> 1 and 2 swapped. (also 3 and 4) (also 5 and 6). 16 --> 1 and 6 swapped. (also 2 and 3) (also 4 and 5). 88 --> asymmetric. 99 --> unable to determine sequence.