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template.cpp
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template.cpp
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// g++ -std=c++14
#include<bits/stdc++.h>
typedef long long ll;
typedef long double lld;
using namespace std;
const bool DEBUG = 1;
#define sd(x) scanf("%d",&x)
#define sd2(x,y) scanf("%d%d",&x,&y)
#define sd3(x,y,z) scanf("%d%d%d",&x,&y,&z)
#define endl "\n"
#define fi first
#define se second
#define pb(x) push_back(x)
#define mp(x,y) make_pair(x,y)
#define LET(x, a) __typeof(a) x(a)
#define foreach(it, v) for(LET(it, v.begin()); it != v.end(); it++)
#define MEMS(a,b) memset(a,b,sizeof(a))
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define __ freopen("input.txt","r",stdin);freopen("output.txt","w",stdout);
#define all(c) c.begin(),c.end()
#define inp(v) {for(auto it = v.begin(); it!=v.end(); it++)cin >> *it;}
#define inf 1000000000000000001
#define epsilon 1e-6
#define int ll
#define RUN_T int _t; cin>>_t; while(_t--)
#define tr(...) if(DEBUG) {cout<<__FUNCTION__<<' '<<__LINE__<<" = ";trace(#__VA_ARGS__, __VA_ARGS__);}
template<typename S, typename T>
ostream& operator<<(ostream& out,pair<S,T> const& p){out<<'('<<p.fi<<", "<<p.se<<')';return out;}
template<typename T>
ostream& operator<<(ostream& out,set<T> const& v){
for(auto i = v.begin(); i!=v.end(); i++)out<<(*i)<<' ';return out;}
template<typename T, typename V>
ostream& operator<<(ostream& out,map<T, V> const& v){
for(auto i = v.begin(); i!=v.end(); i++)out<<"\n"<<(i->first)<<" : "<<(i->second);return out;}
template<typename T, typename V>
ostream& operator<<(ostream& out,unordered_map<T, V> const& v){
for(auto i = v.begin(); i!=v.end(); i++)out<<"\n"<<(i->first)<<" : "<<(i->second);return out;}
template<typename T>
ostream& operator<<(ostream& out,multiset<T> const& v){
for(auto i = v.begin(); i!=v.end(); i++)out<<(*i)<<' ';return out;}
template<typename T>
ostream& operator<<(ostream& out,unordered_set<T> const& v){
for(auto i = v.begin(); i!=v.end(); i++)out<<(*i)<<' ';return out;}
template<typename T>
ostream& operator<<(ostream& out,unordered_multiset<T> const& v){
for(auto i = v.begin(); i!=v.end(); i++)out<<(*i)<<' ';return out;}
template<typename T>
ostream& operator<<(ostream& out,vector<T> const& v){
ll l=v.size();for(ll i=0;i<l-1;i++)out<<v[i]<<' ';if(l>0)out<<v[l-1];return out;}
template<typename T>
void trace(const char* name, T&& arg1){cout<<name<<" : "<<arg1<<endl;}
template<typename T, typename... Args>
void trace(const char* names, T&& arg1, Args&&... args){
const char* comma = strchr(names + 1, ',');cout.write(names, comma-names)<<" : "<<arg1<<" | ";trace(comma+1,args...);}
int gcd(int a, int b) { if(b == 0)return a; return gcd(b, a%b);}
// __builtin_popcount -> count number of bits
int32_t main(){ _
}