msd_2

0 1
0 -> 0
1 -> 1

1 1
0 -> 2
1 -> 3

2 1
0 -> 4
1 -> 5

3 0
0 -> 6
1 -> 3

4 0
0 -> 6
1 -> 7

5 1
0 -> 6
1 -> 7

6 0
0 -> 4
1 -> 5

7 1
0 -> 6
1 -> 3
