Bruteforce all short numbers (i. e. length <= 3) and feed them to both input and output automata, then compare. Here are some useful tests:

1
1
1
1 1 1 1 1 1 1 1 1 1

1
3
0 1 0
1 3 3 3 3 3 3 3 3 2
3 3 3 3 3 3 3 3 3 3
3 3 3 3 3 3 3 3 3 3

8
3
0 1 0
1 3 2 3 3 3 3 3 3 3
3 3 3 3 3 3 3 3 3 3
3 3 3 3 3 3 3 3 3 3