template.cpp

#include <bits/stdc++.h>
using namespace std;
 
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define endl "\n"
#define ll long long
#define ld long double
#define l_b lower_bound
#define u_b upper_bound
#define vi vector<int>
#define vll vector<ll>
#define pii pair<int,int>
#define pll pair<ll, ll>
#define vpii vector<pii>
#define vpll vector<pll>
#define heap priority_queue
#define umap unordered_map
#define sz(a) int((a).size())
#define all(c) c.begin(),c.end()
#define test() ll t;cin>>t;while(t--)
#define mset(a,x) memset(a,x,sizeof(a))
#define rep(i,a,n) for(ll i = a; i < n; ++i) 
#define debug(x) cout<<(#x)<<" is "<<(x)<<endl
#define fastIO ios_base::sync_with_stdio(0);cin.tie(0)
 
const int inf = 1e9;
const int mod = 1e9 + 7;
const int N = 1e6 + 5;
 
 
int main() {
	// fastIO;
    

	return 0;
}