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header.cpp
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header.cpp
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#include <bits/stdc++.h>
#define ll long long
#define endl "\n"
#define pb push_back
#define ms(v,x) memset(v,x,sizeof(v))
#define ff first
#define ss second
#define td(v) v.begin(),v.end()
#define rep(i,a,n) for (int i=(a);i<(n);i++)
#define pii pair<int,int>
#define pll pair<ll,ll>
#define re(v) {for(auto &_re : v) cin >> _re;}
#define pr(v) {for(auto _pr : v) cout << _pr << " "; cout << endl;}
#define prr(v) {for(auto _prr : v) cout << _prr.ff << " " << _prr.ss << endl;}
#define desync ios_base::sync_with_stdio(0); cout.tie(0); cin.tie(0)
using namespace std;
const ll M = 1e9 + 7;
const double PI = acos(-1);
const double min_dist_v = 1e-4;
const double min_dist_e = 1e-6;
const double eps = 1e-6;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int32_t main(){
desync;
return 0;
}