msd_fib msd_fib

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

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

2 0
0 1 -> 4

3 1
0 0 -> 5
1 0 -> 1

4 1
0 0 -> 2

5 0
0 0 -> 3
1 0 -> 1
