#include<bits/stdc++.h>
#include<grader.h>
using namespace std;
//Types
using ll = long long;
using db = double;
//Vectors
#define pb push_back
#define sz(vec) ((ll)vec.size())
#define all(vec) vec.begin(), vec.end()
//things
#define f first
#define s second
const int SMALLINF = 1e9 + 7;
const ll BIGINF = ((ll)1e18) + 7;
#define Speeed ios::sync_with_stdio(0);cin.tie(NULL); cout.tie(NULL);
// Speeed
void solve(int n){
srand(time(0));
if(n<=50)n = 25;
else n = 30;
for(ll i = 0; i < n; i++){
ll rndm = (rand()%n) + 1;
ll val = kth(rndm);
if(cnt(val) > n/3){
say_answer(val);
return;
}
}
say_answer(-1);
}
