use std::io::{stdin, Read, StdinLock};
use std::str::FromStr;

struct Input {
    n: usize,
}

fn read_input(cin_lock: &mut StdinLock) -> Input {
    let n = next_token(cin_lock);
    Input { n }
}

fn f(n: usize, mut check_points: Vec<i32>, stack: i32) -> Vec<i32> {
    if n >= check_points.len() {
        return check_points;
    }
    if check_points[n] > -1 {
        return check_points;
    }
    if check_points[check_points.len() - 1] > -1 {
        return check_points;
    }
    let bc = n.count_ones() as usize;
    check_points[n] = stack;

    return f(n - bc, f(n + bc, check_points, stack + 1), stack + 1);
}

fn solve(input: Input) {
    let check_points = vec![-1; input.n + 1];
    print!("{}", f(1, check_points, 1)[input.n]);
}

fn next_token<T: FromStr>(cin_lock: &mut StdinLock) -> T {
    cin_lock
        .by_ref()
        .bytes()
        .map(|c| c.unwrap() as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect::<String>()
        .parse::<T>()
        .ok()
        .unwrap()
}

fn main() {
    let cin = stdin();
    let mut cin_lock = cin.lock();
    let input = read_input(&mut cin_lock);
    solve(input);
}