import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(br.readLine());
        int[] arr = new int[n + 1];
        Arrays.fill(arr, -1);
        ArrayDeque<Integer> deq = new ArrayDeque<>();
        ArrayDeque<Integer> next = new ArrayDeque<>();
        deq.add(1);
        int count = 0;
        while (deq.size() > 0) {
            count++;
            while (deq.size() > 0) {
                int x = deq.poll();
                if (arr[x] == -1) {
                    arr[x] = count;
                    int y = getCount(x);
                    if (x + y <= n) {
                        next.add(x + y);
                    }
                    if (x - y > 0) {
                        next.add(x - y);
                    }
                }
            }
            ArrayDeque<Integer> tmp = deq;
            deq = next;
            next = tmp;
        }
        System.out.println(arr[n]);
    }
    
    static int getCount(int x) {
        int count = 0;
        while (x > 0) {
            count += x % 2;
            x /= 2;
        }
        return count;
    }
}