#include<iostream>

#include<vector>

#include<algorithm>

#define int long long

using namespace std;

vector<int> Player;

int beauM;

signed main()

{

int n,alu=-1;

cin>>n;

vector<int>::iterator Seem;

for(int i=0;i<n;i++){

int score;

cin>>score;

if(i==0)

beauM=score;

Player.push_back(score);

}

sort(Player.begin(),Player.end(),greater<int>());

Seem=find(Player.begin(),Player.end(),beauM);

while(Seem!=Player.end())

{

alu++;

Player.resize(Player.size()/2);

sort(Player.begin(),Player.end(),greater<int>());

Seem=find(Player.begin(),Player.end(),beauM);

}

cout<<alu<<endl;

return 0;

}

//求大佬看看，找找哪个测试没过去，拜托了