{0,1}
0 1
0 -> 0
1 -> 1

1 1
0 -> 2
1 -> 3

2 1
0 -> 2
1 -> 1

3 1
0 -> 5
1 -> 4

4 0
0 -> 4
1 -> 4

5 1
0 -> 2
1 -> 4