package main

import (
	"fmt"
	"strconv"
)

func scan() (N int) {
	fmt.Scan(&N)
	return
}

func countBit(i int) (count int) {
	s := strconv.FormatInt(int64(i), 2)
	for _, c := range s {
		if c == '1' {
			count++
		}
	}
	return count
}

func getCount(i int, matrix []bool, N int, count int) int {
	if i == N {
		return count
	}
	if i < 1 || i > N || matrix[i] == true {
		return -1
	}

	count++
	matrix[i] = true
	step := countBit(i)
	fowardStep := i + step
	backwardStep := i - step
	fowardCount := getCount(fowardStep, matrix, N, count)
	backwardCount := getCount(backwardStep, matrix, N, count)

	if fowardCount > backwardCount {
		return fowardCount
	} else {
		return backwardCount
	}
}

func main() {
	var N int
	N = scan()
	// N = 11
	matrix := make([]bool, N)
	res := getCount(1, matrix, N, 1)
	fmt.Print(res)
}