143165576
 1919020031
 1204252996
 210637432
 724264821
 1741
 619489590
 1199537418
 1075765759
 747976826
 638486017
 58438190
 1285316221
 186925426
 1180540990
 833393692
 1818960378
 2000000000
 0
 1309028227
 514714359
 624205168
 1795248373
 643201595
 1304312649

14 3 3 4 5 2 4 4 2 4 6 4 3 4 5 3 5 4 1 5 3 4 5 5 8
import java.util.Scanner;

public class source {
    public static void main(String[] args) {
        int n;
        try (Scanner s = new Scanner(System.in)) {
            n = s.nextInt();
        }
        String s = Integer.toHexString(n).toUpperCase();
        int k = 0;
        for (char c : s.toCharArray()) {
            switch (c) {
                case '0':
                case '4':
                case '6':
                case '9':
                case 'A':
                case 'D':
                    k++;
                    break;
                case '8':
                case 'B':
                    k += 2;
                    break;
            }
        }
        System.out.println(k);
    }
}