#include <iostream>
#include <cstring>
using namespace std;
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}

int sgrk[10051];
int dp[20001];

int main(){
    int n;
    cin >> n;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j*=2){
            if((i & j)!=0) sgrk[i]++;
        }
    }
    
    memset(dp,1000000,sizeof(dp));
    dp[1]=1;
    for(int i=1;i<=n;i++){
        chmin(dp[i+sgrk[i]],dp[i]+1);
        if(i-sgrk[i]>0)chmin(dp[i-sgrk[i]],dp[i]+1);
    }
    cout << dp[n] << endl;

}