#include <stdio.h>
#include <algorithm>
int a;
int main()
{
    int counter=0;
    scanf("%d",&a);
    if(a-32>=0)
    {
        counter++;
        a-=32;
    }
    if(a-16>=0)
    {
        counter++;
        a-=16;
    }
    if(a-8>=0)
    {
        counter++;
        a-=8;
    }
    if(a-4>=0)
    {
        counter++;
        a-=4;
    }
    if(a-2>=0)
    {
        counter++;
        a-=2;
    }
    if(a-1>=0)
    {
        counter++;
        a-=1;
    }
    printf("%d\n",counter);
}