#include<bits//stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define req(i,n) for(int i = 1;i <=  n; i++)
#define rrep(i,n) for(ll i = n-1;i >= 0;i--)
#define ALL(obj) begin(obj), end(obj)
#define RALL(a) rbegin(a),rend(a)
typedef long long int ll;
typedef long double ld;
const int MAX = 510000;
const ll MOD = 1000000007;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const ll INF = 1e18;
int main(){
    int n,now=1,cnt=0;cin >>n;
    vector<int> dp(n+10,-1);
    queue<int> q;q.push(1);
    dp[1] = 1;
    while(!q.empty()){
        int p = q.front();q.pop();
        int b = __builtin_popcount(p);
        if(b<p&&dp[p-b]==-1){
            q.push(p-b);dp[p-b] = dp[p] +1;
        }if(p+b<=n&&dp[p+b]==-1){
            q.push(p+b);dp[p+b]=dp[p]+1;
        }
    }cout << dp[n] <<endl;
}