#include "bits/stdc++.h"
#include "ext/pb_ds/assoc_container.hpp"
using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
#define all(v) (v).begin(), (v).end()
#define read(v) for (auto &x : v) cin >> x;

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);

    cout << endl;
    return 0;
}
/*

  ____          _        _                 _             _   _  ___           
 / ___|___   __| | ___  | |__  _   _      | |_   _ _ __ (_) | |/ (_)_ __ ___  
| |   / _ \ / _` |/ _ \ | '_ \| | | |  _  | | | | | '_ \| | | ' /| | '_ ` _ 
| |__| (_) | (_| |  __/ | |_) | |_| | | |_| | |_| | | | | | | . \| | | | | | |
 \____\___/ \__,_|\___| |_.__/ \__, |  \___/ \__,_|_| |_|_| |_|\_\_|_| |_| |_|
                               |___/                                          


*/