#include <bits/stdc++.h>

using namespace std;

int n;
int memo[10010];

void rec(int x, int d) {
  if (memo[x] > 0) return;
  memo[x] = d;
  int cnt = 0;
  for (int i = 0; x >> i; i++) {
    cnt += (x >> i & 1);
  }
  if (x - cnt >  0) rec(x - cnt, d + 1);
  if (x + cnt <= n) rec(x + cnt, d + 1);
}

int main(void) {
  cin >> n;

  memset(memo, -1, sizeof(memo));
  rec(1, 1);
  cout << memo[n] << endl;

  return 0;
}