#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int n;
  cin>>n;
  vector<Int> dp(n+1,-1);
  queue<Int> q;
  dp[1]=1;
  q.emplace(1);
  while(!q.empty()){
    Int v=q.front();q.pop();
    Int x=__builtin_popcount(v);
    if(v-x>0&&dp[v-x]<0){
      dp[v-x]=dp[v]+1;
      q.emplace(v-x);
    }
    if(v+x<=n&&dp[v+x]<0){
      dp[v+x]=dp[v]+1;
      q.emplace(v+x);
    }
  }
  cout<<dp[n]<<endl;
  return 0;
}