using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            int pos = 1;int c = 0;
            int[] flag = new int[N + 1];
            foreach(int i in flag)
            {
                flag[i] = 0;
            }
            Console.WriteLine("{0}", checker(ref flag,pos, c, N));
            Console.ReadLine();
        }

        //10進数を2進数にした時の1ビットの数を返す関数
        static int bits(int num)
        {
            string bits = "";
            for(int i = num;0 < i;i /= 2)
            {
                if (i % 2 == 1) bits += (i % 2);
            }
            return num = bits.Length;
        }

        //再帰処理　cを返す
        static int checker(ref int[] flag, int pos, int c, int N)
        {
            while (flag[pos] == 0)
            {
                flag[pos] = 1;
                c++;;
                if (pos == N) return c;

                int l = -1;int r = -1;
                if(0 < (pos - bits(pos)))
                {
                    l = checker(ref flag, pos - bits(pos), c, N);
                }
                if((pos + bits(pos)) <= N)
                {
                    r = checker(ref flag, pos + bits(pos), c, N);
                }
                
                if(l != -1)
                {
                    return l;
                }else if(r != -1)
                {
                    return r;
                }
                else
                {
                    return -1;
                }

                
            }
            return -1;
        }

    }
}