using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        int n = int.Parse(Console.ReadLine());

        int p = int.Parse(Console.ReadLine());

        Queue <int> queue = new Queue <int>();

        queue.Enqueue(n);

        int index =0;

        while(queue.Count > 0)

        {

            int current = queue.Dequeue();

            index++;

            if(current == p){Console.WriteLine(index); break;}

            else 

            {

                queue.Enqueue(current + 1);

                queue.Enqueue(current*2);

            }

        }

    }

}