#include <bits/stdc++.h>
using namespace std;
//minnum记录最小数,mincnt记录最小数个数,每输入一个数,就进行比较,知道输入的数==minnum
//记输入为k,k>minnum时/2次数+1,k除以二,k<minnum时,minnum/2,次数加上mincnt,把之前处理过的全部/2
int main() {
    int n,mincnt=0,minnum=0,k,ans=0;
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>k;
        if(!i){
            mincnt=1;
            minnum=k;
            continue;
        }
        while(minnum!=k){
            if(k>minnum){
                ans++;
                k/=2;
            }else if(k<minnum){
                minnum/=2;
                ans+=mincnt;
            }
        }
        mincnt++;
    }
    cout<<ans;
}