#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <string>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <deque>
#include <list>
#include "prize.h"
using namespace std;
typedef int ll;
typedef unsigned long long int ull;
typedef long double ld;
#define REP(i,a,b) for(ll i=(ll)a; i<(ll)b; i++)
#define pb push_back
#define mp make_pair
#define pl pair<ll,ll>
#define ff first
#define ss second
#define whole(x) x.begin(),x.end()
#define DEBUG(i) cout<<"Pedro Is The Master "<<i<<endl
#define INF 100000000000000000LL
ll insig;
#define In(vecBRO, LENBRO) REP(IBRO,0,LENBRO) {cin>>insig; vecBRO.pb(insig);}
void Out(vector<ll> x) {REP(i,0,x.size()) {cout<<x[i]<<" ";} cout<<endl;}
int find_best(int n)
{
ll N=(ll) (n);
ll lo=0LL; ll hi=N-1;
while(hi>lo)
{
ll mid=(lo+hi)/2LL;
vector<int> q=ask(mid);
if(q[0]==0 && q[1]==0) {return ((int) mid);}
if(q[0]==1) {hi=mid-1;}
else {lo=mid+1;}
}
return ((int) lo);
}
