template.cpp

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double lld;

#define fo(n)       for(int i = 0; i < (int)n; i++)
#define rep(i,x,n)  for(auto i = x; i < n; i++)
#define pf          push_front
#define pb          push_back
#define ppf         pop_front
#define ppb         pop_back
#define ff          first
#define ss          second
#define mem0(a)     memset(a,0,sizeof(a))
#define all(v)      v.begin(),v.end()
#define pii         pair<int,int>
#define pll         pair<ll,ll>
#define ch          " "
#define nline       "\n"
#define LIGHTS ios_base::sync_with_stdio(false); 
#define OUT cin.tie(NULL);

const int INF  =  1e9 + 20;
const ll INFLL =  2e18 + 20;
const lld pi   =  3.14159265358979323846;

const int MOD  =  1e9 + 7;
const int MAX  =  1e5 + 20;

void usaco(string filename) {
	freopen((filename + ".in").c_str(), "r", stdin);
	freopen((filename + ".out").c_str(), "w", stdout);
}

// bool comp(pair<int,int> &a, pair<int,int> &b) {
//     if(a.first != b.first)    return a.first > b.first;
//     return a.first < a.second;
// }

// bool pow2(int x) {
//     return x && (!(x&(x-1)));
// }

#define int ll

void solve() {
    
}      

signed main() {
    LIGHTS OUT;

    // auto start = chrono::high_resolution_clock::now();

    // #ifndef ONLINE_JUDGE
        freopen("in.txt","r",stdin);   
        freopen("out.txt","w",stdout);
    // #endif

    // usaco("");

    int t = 1;
    // cin >> t;

    for(int i = 1; i <= t; i++){
        // cout << "Case #" << i << ": ";
        // cout << nline;
        solve();
    }

    // auto end = chrono::high_resolution_clock::now();
    // double time_taken = chrono::duration_cast<chrono::nanoseconds>(end-start).count();
    // time_taken *= 1e-9;
    // cerr << "time taken: " << fixed << time_taken << setprecision(9) << endl;   
}