#![allow(unused_imports)]
#![allow(dead_code)]
#![allow(unused_variables)]

use std::f64::consts::PI;
use std::io::{stdin, stdout, BufReader, Write};
use std::time::Instant;
use std::cmp::{min,max,Reverse};
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque};
//use proconio::{input, source::line::LineSource,marker::Chars,fastout};
//use rand::distributions::{Distribution, Uniform};
//use rand_chacha::{rand_core::SeedableRng, ChaCha8Rng};
//use core::ops::{Add,Sub,Mul,Div};
//use itertools::Itertools;

const M1: i64 = 1000_000_007;
const M2: i64 = 998244353;

macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes
                .by_ref()
                .map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};

    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };

    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };

    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };

    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}


//#[fastout]
fn main(){
    //let stdin = stdin();
    //let mut source = LineSource::new(BufReader::new(stdin.lock()));

    input!{
        //from &mut source,
        n: usize,
    }

    let mut dp = vec![-1;n+1];
    dfs(n,1,1,&mut dp);
    println!("{}", dp[n]);
}

fn dfs(n: usize, x: usize,c: i64, dp: &mut Vec<i64>){
    dp[x] = c;
    let count = count(x);
    if count + x <= n && (dp[count + x] == -1 || dp[count + x] > c + 1){
        dfs(n,count + x,c+1,dp);
    }
    if x - count >= 1 && (dp[x - count] == -1 || dp[x - count] > c +1){
        dfs(n,x - count,c+1,dp);
    }
}

fn count(x: usize) -> usize{
    let mut c = 0;
    let mut i = 1;
    while x >= i{
        if x & i > 0{
            c += 1;
        }
        i *= 2;
    }
    return c;
}