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 -> 7

4 1
0 -> 8
1 -> 9

5 1
0 -> 10
1 -> 11

6 0
0 -> 12
1 -> 4

7 0
0 -> 13
1 -> 3

8 0
0 -> 4
1 -> 5

9 1
0 -> 6
1 -> 7

10 1
0 -> 14
1 -> 4

11 1
0 -> 8
1 -> 3

12 0
0 -> 6
1 -> 11

13 0
0 -> 15
1 -> 5

14 0
0 -> 10
1 -> 11

15 0
0 -> 13
1 -> 9
