test.cpp

#include<bits/stdc++.h>
#define ll long long int
#define push_back pb
#define F first 
#define S              second
#define pb             push_back
#define si             set <int>
#define vi             vector <int>
#define pii            pair <int, int>
#define vpi            vector <pii>
#define vpp            vector <pair<int, pii>>
#define mii            map <int, int>
#define mpi            map <pii, int>
#define spi            set <pii>
#define vvi vector<vector<int>>

using namespace std;
 
 



void solve(){




}



int main()
{

#ifndef ONLINE_JUDGE
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif
 solve(); 
 
return 0;
}