
Score : 300 points
Problem StatementAs a token of his gratitude, Takahashi has decided to give his mother an integer sequence.
The sequence A needs to satisfy the conditions below:
A consists of integers between X and Y (inclusive).
For each 1\leq i \leq |A|-1, A_{i+1} is a multiple of A_i and strictly greater than A_i.
Find the maximum possible length of the sequence.
Constraints
1 \leq X \leq Y \leq 10^{18}
All input values are integers.
InputInput is given from Standard Input in the following format:
X Y
OutputPrint the maximum possible length of the sequence.
Sample Input 13 20
Sample Output 13
The sequence 3,6,18 satisfies the conditions.
Sample Input 225 100
Sample Output 23
Sample Input 3314159265 358979323846264338
Sample Output 331
