ac

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;

public class Main {
    public static Scanner sc = new Scanner(System.in);

    public static BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

    public static long mod = (long)Math.pow(2,29);

    public static void main(String[] args) throws Exception {
        int n = sc.nextInt();
        System.out.println(getOneCnt(n));
    }

    static int getOneCnt(int n){
        int cnt = 0;
        for(int i=31;i>=0;i--){
            cnt += (n >> i) & 1;
        }
        return cnt;
    }

}

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;

public class Main {
    public static Scanner sc = new Scanner(System.in);

    public static BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

    public static long mod = (long)Math.pow(2,29);

    public static void main(String[] args) throws Exception {
        int n = sc.nextInt();
        System.out.println(getOneCnt(n));
    }

    static int getOneCnt(int n){
        int cnt = 0;
        while (n != 0){
            n = n & (n-1); // 将最右边的1干掉
            cnt ++;
        }
        return cnt;
    }

}
/*
7 0111
& 0110
  0110
& 0101
  0100
& 0011
  0000
*/

public class Main {
    public static Scanner sc = new Scanner(System.in);

    public static BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

    public static long mod = (long)Math.pow(2,29);

    public static void main(String[] args) throws Exception {
        int n = Integer.MIN_VALUE;
        System.out.print(n + " ");
        printBit(n);
        n = n - 1;
        System.out.print(n + " ");
        printBit(n);
    }

    static void printBit(int n){
        for(int i=31;i>=0;i--){
            int tmp = (n >> i) & 1;
            System.out.print(tmp);
        }
        System.out.println();
    }
}
/*
-2147483648 10000000000000000000000000000000
2147483647 01111111111111111111111111111111
*/