#include <bits/stdc++.h>
using namespace std;
#define Rep(i,N) for(int i = 0;i < N;i++)
int main(){
  int N;
  queue<int>que;
  que.push(1);
  cin >> N;
  int now;
  int mc[10001];
  memset(mc,-1,sizeof(mc));
  mc[1] = 1;
  while(!que.empty()){
    now = que.front();que.pop();
    if(now == N)break;
    int hosu = 0;
    for(int i = 0;1 << i <= now;i++)hosu += (now >> i) & 1;
    if(!(~mc[now - hosu])){
      mc[now - hosu] = mc[now] + 1;
      que.push(now - hosu);
    }
    if(!(~mc[now + hosu]) && now + hosu <= N){
      mc[now + hosu] = mc[now] + 1;
      que.push(now + hosu);
    }
  }
  cout << mc[N] << endl;
  return 0;
}