msd_fib msd_fib

0 0
0 0 -> 0
1 0 -> 1
0 1 -> 2

1 1
0 0 -> 3
0 1 -> 2

2 1

3 0
0 0 -> 4
1 0 -> 1

4 1
0 0 -> 4
1 0 -> 5

5 1
0 0 -> 4
