import java.util.Arrays;
import java.util.PriorityQueue;
import java.util.Scanner;

public class BitSugoroku {


	public static void main(String[] args) {
		BitSugoroku p = new BitSugoroku();
	}

	public BitSugoroku() {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		solve(n);
	}

	public void solve(int n) {
		
		int[] isVisit = new int[n+1];
		Arrays.fill(isVisit, -1);
	
		PriorityQueue<P> queue = new PriorityQueue<P>();
		queue.offer(new P(1, 1));
		while(!queue.isEmpty()){
			P p = queue.poll();
			if(isVisit[p.x] < 0)
				isVisit[p.x] = p.d;
			else
				continue;
			
			int move = Integer.bitCount(p.x);
			if(p.x+move <= n && isVisit[p.x+move] < 0){
				queue.offer(new P(p.x+move, p.d+1));
			}
			if(p.x-move >= 1 && isVisit[p.x-move] < 0){
				queue.offer(new P(p.x-move, p.d+1));
			}
		}
		
		System.out.println(isVisit[n]);
		
	}

	public class P implements Comparable<P>{
		public int x;
		public int d;
		
		public P(int x, int d) {
			this.x = x;
			this.d = d;
		}

		@Override
		public int compareTo(P o) {
			return this.d - o.d;
		}

	}
	
}