Score : 300 points
As a token of his gratitude, Takahashi has decided to give his mother an integer sequence. The sequence A needs to satisfy the conditions below:
Find the maximum possible length of the sequence.
Input is given from Standard Input in the following format:
X Y
Print the maximum possible length of the sequence.
3 20
3
The sequence 3,6,18 satisfies the conditions.
25 100
3
314159265 358979323846264338
31