using System;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static void Main(string[] args)
    {
        string s = Console.ReadLine();
        int Masu = int.Parse(s);
        Sugoroku Ans = new Sugoroku(Masu);
        Console.WriteLine(Ans.Ans(Masu).ToString());
        Console.ReadLine();
    }
    class Sugoroku
    {
        private IdouCount[] Idou;
        public Sugoroku(int inMaxMasu)
        {
            Idou = new IdouCount[inMaxMasu+1];
            for (int Loop = 1; Loop <= inMaxMasu; Loop++)
            {
                Idou[Loop] = new IdouCount();
            }
            Idou[1].No = 1;

            var que = new Queue<int>();
            int GetSugorokuCount(int inNo)
            {
                string Nisinsuu = Convert.ToString(inNo, 2);
                return Nisinsuu.Where(x => x == '1').Count();
            }
            que.Enqueue(1);
            while (que.Count != 0)
            {
                int CurrentNo = que.Dequeue();
                int PlusMinas = GetSugorokuCount(CurrentNo);
                if (CurrentNo - PlusMinas >= 1)
                {
                    if (!Idou[CurrentNo - PlusMinas].Enable() || Idou[CurrentNo - PlusMinas].No > Idou[CurrentNo].No + 1)
                    {
                        Idou[CurrentNo - PlusMinas].No = Idou[CurrentNo].No + 1;
                        que.Enqueue(CurrentNo - PlusMinas);
                    }
                }
                if (CurrentNo + PlusMinas <= inMaxMasu)
                {
                    if (!Idou[CurrentNo + PlusMinas].Enable() || Idou[CurrentNo + PlusMinas].No > Idou[CurrentNo].No + 1)
                    {
                        Idou[CurrentNo + PlusMinas].No = Idou[CurrentNo].No + 1;
                        que.Enqueue(CurrentNo + PlusMinas);
                    }
                }
            }
        }

        public int Ans(int inMaxMasu) {
            return Idou[inMaxMasu].No;
        }
    }
    class IdouCount {
        private int IdouSuu=-1;
        private bool IdouEnable;
        public bool Enable()
        {
            return IdouEnable;
        }
        public int No
        {
            get { return this.IdouSuu; }
            set { this.IdouSuu = value;IdouEnable = true;}
        }
    }
}