#include "bits/stdc++.h"
using namespace std;

typedef long long Int;
#define REP(i,n) for(int (i)=0;(i)<(int)(n);++(i))


int dp[10000 + 1];

int main() {
	int N;
	cin >> N;
	fill(dp, dp + 10001, -1);
	dp[1] = 1;
	queue<int> q;
	q.push(1);
	while (!q.empty()) {
		int x = q.front(); q.pop();
		int d = __builtin_popcount(x);	
		if (x - d > 0) {
			if (dp[x - d] == -1) {
				dp[x - d] = dp[x] + 1;
				q.push(x - d);
			}
		}
		if (x + d <= N) {
			if (dp[x + d] == -1) {
				dp[x + d] = dp[x] + 1;
				q.push(x + d);
			}
		}
	}
	cout << dp[N] << endl;
}