import java.io.*;
import java.util.Arrays;

class Main{
public static void main(String[] args) throws IOException{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String line="";
int[] dp=new int[10001];
int now=1;
int count;
Arrays.fill(dp,-1);
dp[1]=0;
while(true){
count=0;
String val2=Integer.toBinaryString(now);
for(int i=0;i<val2.length();i++){
if(val2.charAt(i)=='1'){
count++;
}
}
if(now+count>10000){
break;
}
dp[now+count]=dp[now]+1;
now+=count;
}
while((line=br.readLine())!=null){
int n=Integer.parseInt(line);
System.out.println(dp[n]);
}
}
}