/*
Write a program segment that reads a sequence of integers until a 0 is encountered. For each number read, output the number of times the number can be divided by 2 before you get 0. For example, if the input is:

    2
    9
    -7
    4
    -3
    0

The code will read in all the integers, and produce the following output:

    2
    4
    3
    3
    2



 */
import java.util.Scanner;
public class HW4q2c {
	public static void main(String[] args)
	{
		Scanner kb=new Scanner(System.in);
		
		int userInt=kb.nextInt();
		while (userInt!=0)
		{
			int countDiv=0;
			while (userInt>0)
			{
				userInt=userInt/2;
				countDiv++;
			}
			System.out.println(countDiv);
			userInt=kb.nextInt();
		}
	}
}