Problem Statement

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:

• 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.

Input

Input is given from Standard Input in the following format:
X Y

Output

Print the maximum possible length of the sequence.

Constraints

• $1 \leq X \leq Y \leq 10^{18}$
• All input values are integers.

Sample Input 1

3 20

Sample Output 1

3

The sequence 3,6,18 satisfies the conditions.

Sample Input 2

25 100

Sample Output 2

3

Sample Input 3

314159265 358979323846264338

Sample Output 3

31

见题面 Input 部分

见题面 Output 部分