#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <stack>
#include <queue>
#include <vector>
#include <map>
#include <sstream>
#include <cmath>
#include <limits>
#include <utility>
#include <iomanip>
#include <set>
#include <numeric>
#include <cassert>
#include <ctime>

#define INF_MAX 2147483647
#define INF_MIN -2147483647
#define INF_LL 9223372036854775807LL
#define INF 2000000000
#define PI acos(-1.0)
#define EPS 1e-8
#define LL long long
#define mod 1000000007
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define setzero(a) memset(a,0,sizeof(a))
#define setdp(a) memset(a,-1,sizeof(a))
#define bits(a) __builtin_popcount(a)

using namespace std;

int cnt[100005], vis[100005], steps[100005];

int main()
{
  //ios_base::sync_with_stdio(0);
  //freopen("lca.in", "r", stdin);
  //freopen("lca.out", "w", stdout);
  int n, res = INF, x, y;
  scanf("%d", &n);
  for(int i=1;i<=n;i++)
  {
    scanf("%d", &x);
    queue<pair<int, int> > q;
    q.push(mp(x, 0));
    while(!q.empty())
    {
      x = q.front().f;
      y = q.front().s;
      q.pop();
      if(x > 100003) continue;
      if(vis[x] == i) continue;
      vis[x] = i;
      steps[x]+=y;
      cnt[x]++;
      q.push(mp(x * 2, y + 1));
      q.push(mp(x / 2, y + 1));
    }
  }
  for(int i=0;i<=100000;i++)
    if(cnt[i] == n)
      if(res > steps[i])
        res = steps[i];
  printf("%d", res);
  return 0;
}