Given a base- integer, , convert it to binary (base-). Then find and print the base- integer denoting the maximum number of consecutive 's in 's binary representation.
Input Format
A single integer, .
Constraints
Output Format
Print a single base- integer denoting the maximum number of consecutive 's in the binary representation of .
Sample Input 1
5
Sample Output 1
1
Sample Input 2
13
Sample Output 2
2
Explanation
Sample Case 1:
The binary representation of is , so the maximum number of consecutive 's is .
Sample Case 2:
The binary representation of is , so the maximum number of consecutive 's is .