結果

問題 No.3024 全単射的
ユーザー 👑 p-adic
提出日時 2023-09-06 22:48:56
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
AC  
実行時間 259 ms / 5,000 ms
コード長 32,967 bytes
コンパイル時間 13,223 ms
コンパイル使用メモリ 323,536 KB
最終ジャッジ日時 2025-02-16 19:07:37
ジャッジサーバーID
（参考情報） 		judge2 / judge3
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ファイルパターン 結果
other AC * 22
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ソースコード

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プレゼンテーションモードにする

#ifndef INCLUDE_MODE
  #define INCLUDE_MODE
  // #define REACTIVE
  // #define USE_GETLINE
#endif
#ifdef INCLUDE_MAIN
inline void Solve()
{
  // 入力受け取り。
  CEXPR( int , bound_N , 1e5 ); CIN_ASSERT( N , 1 , bound_N );
  CEXPR( ll , bound_M , 1e18 ); CIN_ASSERT( M , 2 , bound_M );
  CIN_A( T2<ll> , 0 , N , LR );
  // 座標圧縮。実装は好きにして良い。
  CoordinateCompress<ll> cc{};
  FOR( i , 0 , N ){
    auto& [Li,Ri] = LR[i];
    ASSERT( Li , 1 , M );
    ASSERT( Ri , Li + 1 , M );
    cc.SetL( --Li );
    cc.SetL( --Ri );
  }
  M = cc.GetL();
  // 辺を計算する関数。
  auto edge = [&]( const int& i ){
    auto& [Li,Ri] = LR[i];
    return vector<int>{ int( Li ) , int( Ri ) };
  };
  
  // ホップクロフトカープ法で最大マッチングを計算。実装は好きにして良い。
  HopcroftKarp hk{};
  auto mm = hk.GetMaximumMatching( N , M , edge );
  // 最大マッチングのサイズを出力。
  RETURN( mm.size() );
}
REPEAT_MAIN(1);
#else // INCLUDE_MAIN
#ifdef INCLUDE_LIBRARY
// https://github.com/p-adic/cpp
// VVV ライブラリは以下に挿入する。
// 圧縮用
#define TE template
#define TY typename
#define US using
#define ST static
#define AS assert
#define IN inline
#define CL class
#define PU public
#define OP operator
#define CE constexpr
#define CO const
#define NE noexcept
#define RE return 
#define WH while
#define VO void
#define VE vector
#define LI list
#define BE begin
#define EN end
#define SZ size
#define LE length
#define PW Power
#define MO move
#define TH this
#define CRI CO int&
#define CRUI CO uint&
#define CRL CO ll&
#define VI virtual 
#define IS basic_istream<char,Traits>
#define OS basic_ostream<char,Traits>
#define ST_AS static_assert
#define reMO_CO remove_const
#define is_COructible_v is_constructible_v
#define rBE rbegin
#define reSZ resize
// Random（1KB）
ll GetRand(CRI Rand_min,CRI Rand_max){AS(Rand_min <= Rand_max);ll AN = time(NULL);RE AN * rand()%(Rand_max + 1 - Rand_min)+ Rand_min;}
// Map (2KB)
#define DC_OF_HASH(...)struct hash<__VA_ARGS__>{IN size_t OP()(CO __VA_ARGS__& n)CO;};
CL is_ordered{PU:is_ordered()= delete;TE <TY T> ST CE auto Check(CO T& t)-> decltype(t < t,true_type());ST CE false_type Check(...);TE <TY T> ST CE 
    CO bool value = is_same_v< decltype(Check(declval<T>())),true_type >;};
TE <TY T>US Set = conditional_t<is_COructible_v<unordered_set<T>>,unordered_set<T>,conditional_t<is_ordered::value<T>,set<T>,VO>>;
#define DF_OF_AR_FOR_MAP(MAP,OPR)TE <TY T,TY U> IN MAP<T,U>& OP OPR ## =(MAP<T,U>& a,CO pair<T,U>& v){a[v.first]OPR ## = v.second;RE a;}TE <TY T,TY U
    > IN MAP<T,U>& OP OPR ## =(MAP<T,U>& a0,CO MAP<T,U>& a1){for(auto&[t,u]:a1){a0[t]OPR ## = u;}RE a0;}TE <TY T,TY U,TY ARG> IN MAP<T,U> OP OPR(MAP
    <T,U> a,CO ARG& arg){RE MO(a OPR ## = arg);}
#define DF_OF_ARS_FOR_MAP(MAP)DF_OF_AR_FOR_MAP(MAP,+);DF_OF_AR_FOR_MAP(MAP,-);DF_OF_AR_FOR_MAP(MAP,*);DF_OF_AR_FOR_MAP(MAP,/);DF_OF_AR_FOR_MAP(MAP,%
    );
TE <TY T,TY U>US Map = conditional_t<is_COructible_v<unordered_map<T,int>>,unordered_map<T,U>,conditional_t<is_ordered::value<T>,map<T,U>,VO>>;
DF_OF_ARS_FOR_MAP(map);DF_OF_ARS_FOR_MAP(unordered_map);
// Module (6KB)
#define DC_OF_CPOINT(POINT)IN CO U& POINT()CO NE
#define DC_OF_POINT(POINT)IN U& POINT()NE
#define DF_OF_CPOINT(POINT)TE <TY U> IN CO U& VirtualPointedSet<U>::POINT()CO NE{RE Point();}
#define DF_OF_POINT(POINT)TE <TY U> IN U& VirtualPointedSet<U>::POINT()NE{RE Point();}
TE <TY U>CL UnderlyingSet{PU:US type = U;};TE <TY U>CL VirtualPointedSet:VI PU UnderlyingSet<U>{PU:VI CO U& Point()CO NE = 0;VI U& Point()NE = 0
    ;DC_OF_CPOINT(Unit);DC_OF_CPOINT(Zero);DC_OF_CPOINT(One);DC_OF_CPOINT(Infty);DC_OF_POINT(init);DC_OF_POINT(root);};TE <TY U>CL PointedSet:VI PU 
    VirtualPointedSet<U>{PU:U m_b_U;IN PointedSet(U b_u = U());IN CO U& Point()CO NE;IN U& Point()NE;};TE <TY U>CL VirtualNSet:VI PU UnderlyingSet<U
    >{PU:VI U Transfer(CO U& u)= 0;IN U Inverse(CO U& u);};TE <TY U,TY F_U>CL AbstractNSet:VI PU VirtualNSet<U>{PU:F_U m_f_U;IN AbstractNSet(F_U f_U
    );IN AbstractNSet<U,F_U>& OP=(CO AbstractNSet&)NE;IN U Transfer(CO U& u);};TE <TY U>CL VirtualMagma:VI PU UnderlyingSet<U>{PU:VI U Product(U u0
    ,CO U& u1)= 0;IN U Sum(U u0,CO U& u1);};TE <TY U = ll>CL AdditiveMagma:VI PU VirtualMagma<U>{PU:IN U Product(U u0,CO U& u1);};TE <TY U = ll>CL 
    MultiplicativeMagma:VI PU VirtualMagma<U>{PU:IN U Product(U u0,CO U& u1);};TE <TY U,TY M_U>CL AbstractMagma:VI PU VirtualMagma<U>{PU:M_U m_m_U;IN 
    AbstractMagma(M_U m_U);IN AbstractMagma<U,M_U>& OP=(CO AbstractMagma<U,M_U>&)NE;IN U Product(U u0,CO U& u1);};
TE <TY U> IN PointedSet<U>::PointedSet(U b_U):m_b_U(MO(b_U)){}TE <TY U> IN CO U& PointedSet<U>::Point()CO NE{RE m_b_U;}TE <TY U> IN U& PointedSet<U
    >::Point()NE{RE m_b_U;}DF_OF_CPOINT(Unit);DF_OF_CPOINT(Zero);DF_OF_CPOINT(One);DF_OF_CPOINT(Infty);DF_OF_POINT(init);DF_OF_POINT(root);TE <TY U
    ,TY F_U> IN AbstractNSet<U,F_U>::AbstractNSet(F_U f_U):m_f_U(MO(f_U)){ST_AS(is_invocable_r_v<U,F_U,U>);}TE <TY U,TY F_U> IN AbstractNSet<U,F_U>& 
    AbstractNSet<U,F_U>::operator=(CO AbstractNSet<U,F_U>&)NE{RE *TH;}TE <TY U,TY F_U> IN U AbstractNSet<U,F_U>::Transfer(CO U& u){RE m_f_U(u);}TE 
    <TY U> IN U VirtualNSet<U>::Inverse(CO U& u){RE Transfer(u);}TE <TY U,TY M_U> IN AbstractMagma<U,M_U>::AbstractMagma(M_U m_U):m_m_U(MO(m_U
    )){ST_AS(is_invocable_r_v<U,M_U,U,U>);}TE <TY U,TY M_U> IN AbstractMagma<U,M_U>& AbstractMagma<U,M_U>::OP=(CO AbstractMagma<U,M_U>&)NE{RE *TH;}TE 
    <TY U> IN U AdditiveMagma<U>::Product(U u0,CO U& u1){RE MO(u0 += u1);}TE <TY U> IN U MultiplicativeMagma<U>::Product(U u0,CO U& u1){RE MO(u0 *= 
    u1);}TE <TY U,TY M_U> IN U AbstractMagma<U,M_U>::Product(U u0,CO U& u1){RE m_m_U(MO(u0),u1);}TE <TY U> IN U VirtualMagma<U>::Sum(U u0,CO U& u1
    ){RE Product(MO(u0),u1);}
TE <TY U>CL VirtualMonoid:VI PU VirtualMagma<U>,VI PU VirtualPointedSet<U>{};TE <TY U = ll>CL AdditiveMonoid:VI PU VirtualMonoid<U>,PU AdditiveMagma
    <U>,PU PointedSet<U>{};TE <TY U = ll>CL MultiplicativeMonoid:VI PU VirtualMonoid<U>,PU MultiplicativeMagma<U>,PU PointedSet<U>{PU:IN 
    MultiplicativeMonoid(U e_U);};TE <TY U,TY M_U>CL AbstractMonoid:VI PU VirtualMonoid<U>,PU AbstractMagma<U,M_U>,PU PointedSet<U>{PU:IN 
    AbstractMonoid(M_U m_U,U e_U);};
TE <TY U> IN MultiplicativeMonoid<U>::MultiplicativeMonoid(U e_U):PointedSet<U>(MO(e_U)){}TE <TY U,TY M_U> IN AbstractMonoid<U,M_U>::AbstractMonoid
    (M_U m_U,U e_U):AbstractMagma<U,M_U>(MO(m_U)),PointedSet<U>(MO(e_U)){}
TE <TY U>CL VirtualGroup:VI PU VirtualMonoid<U>,VI PU VirtualPointedSet<U>,VI PU VirtualNSet<U>{};TE <TY U = ll>CL AdditiveGroup:VI PU VirtualGroup<U
    >,PU AdditiveMonoid<U>{PU:IN U Transfer(CO U& u);};TE <TY U,TY M_U,TY I_U>CL AbstractGroup:VI PU VirtualGroup<U>,PU AbstractMonoid<U,M_U>,PU 
    AbstractNSet<U,I_U>{PU:IN AbstractGroup(M_U m_U,U e_U,I_U i_U);};
TE <TY U,TY M_U,TY I_U> IN AbstractGroup<U,M_U,I_U>::AbstractGroup(M_U m_U,U e_U,I_U i_U):AbstractMonoid<U,M_U>(MO(m_U),MO(e_U)),AbstractNSet<U,I_U
    >(MO(i_U)){}TE <TY U> IN U AdditiveGroup<U>::Transfer(CO U& u){RE -u;}
TE <TY R,TY U>CL VirtualRSet:VI PU UnderlyingSet<U>{PU:VI U Action(CO R& r,U u)= 0;IN U PW(U u,CO R& r);IN U ScalarProduct(CO R& r,U u);};TE <TY U,TY 
    MAGMA>CL RegularRSet:VI PU VirtualRSet<U,U>,PU MAGMA{PU:IN RegularRSet(MAGMA magma);IN U Action(CO U& r,U u);};TE <TY MAGMA> RegularRSet(MAGMA 
    magma)-> RegularRSet<inner_t<MAGMA>,MAGMA>;TE <TY R,TY U,TY O_U>CL AbstractRSet:VI PU VirtualRSet<R,U>{PU:O_U m_o_U;IN AbstractRSet(CO R& dummy0
    ,CO U& dummy1,O_U o_U);IN AbstractRSet<R,U,O_U>& OP=(CO AbstractRSet<R,U,O_U>&)NE;IN U Action(CO R& r,U u);};TE <TY R,TY U,TY O_U,TY GROUP>CL 
    AbstractModule:PU AbstractRSet<R,U,O_U>,PU GROUP{PU:IN AbstractModule(CO R& dummy,O_U o_U,GROUP M);};TE <TY R,TY O_U,TY GROUP> AbstractModule(CO 
    R& dummy,O_U o_U,GROUP M)-> AbstractModule<R,inner_t<GROUP>,O_U,GROUP>;TE <TY R,TY U>CL Module:VI PU VirtualRSet<R,U>,PU AdditiveGroup<U>{PU:IN U 
    Action(CO R& r,U u);};
TE <TY R,TY MAGMA> IN RegularRSet<R,MAGMA>::RegularRSet(MAGMA magma):MAGMA(MO(magma)){}TE <TY R,TY U,TY O_U> IN AbstractRSet<R,U,O_U>::AbstractRSet
    (CO R& dummy0,CO U& dummy1,O_U o_U):m_o_U(MO(o_U)){ST_AS(is_invocable_r_v<U,O_U,R,U>);}TE <TY R,TY U,TY O_U,TY GROUP> IN AbstractModule<R,U,O_U
    ,GROUP>::AbstractModule(CO R& dummy,O_U o_U,GROUP M):AbstractRSet<R,U,O_U>(dummy,M.One(),MO(o_U)),GROUP(MO(M)){ST_AS(is_same_v<U,inner_t<GROUP
    >>);}TE <TY R,TY U,TY O_U> IN AbstractRSet<R,U,O_U>& AbstractRSet<R,U,O_U>::OP=(CO AbstractRSet<R,U,O_U>&)NE{RE *TH;}TE <TY U,TY MAGMA> IN U 
    RegularRSet<U,MAGMA>::Action(CO U& r,U u){RE TH->Product(r,MO(u));}TE <TY R,TY U,TY O_U> IN U AbstractRSet<R,U,O_U>::Action(CO R& r,U u){RE m_o_U
    (r,MO(u));}TE <TY R,TY U> IN U Module<R,U>::Action(CO R& r,U u){RE MO(u *= r);}TE <TY R,TY U> IN U VirtualRSet<R,U>::PW(U u,CO R& r){RE Action(r
    ,MO(u));}TE <TY R,TY U> IN U VirtualRSet<R,U>::ScalarProduct(CO R& r,U u){RE Action(r,MO(u));}
// Graph (5KB)
TE <TY T,TY R1,TY R2,TY E>CL VirtualGraph:VI PU UnderlyingSet<T>{PU:VI R1 Enumeration(CRI i)= 0;IN R2 Enumeration_inv(CO T& t);TE <TY PATH> IN R2 
    Enumeration_inv(CO PATH& p);IN VO Reset();VI CRI SZ()CO NE = 0;VI E& edge()NE = 0;VI ret_t<E,T> Edge(CO T& t)= 0;TE <TY PATH> IN ret_t<E,T> Edge
    (CO PATH& p);ST IN CO T& Vertex(CO T& t)NE;TE <TY PATH> ST IN CO T& Vertex(CO PATH& e)NE;VI R2 Enumeration_inv_Body(CO T& t)= 0;};TE <TY T,TY R1
    ,TY R2,TY E>CL EdgeImplimentation:VI PU VirtualGraph<T,R1,R2,E>{PU:int m_SZ;E m_edge;IN EdgeImplimentation(CRI SZ,E edge);IN CRI SZ()CO NE;IN E& 
    edge()NE;IN ret_t<E,T> Edge(CO T& t);};TE <TY E>CL Graph:PU EdgeImplimentation<int,CRI,CRI,E>{PU:IN Graph(CRI SZ,E edge);IN CRI Enumeration(CRI i
    );TE <TY F> IN Graph<F> GetGraph(F edge)CO;IN CRI Enumeration_inv_Body(CRI t);};TE <TY T,TY Enum_T,TY Enum_T_inv,TY E>CL EnumerationGraph:PU 
    EdgeImplimentation<T,ret_t<Enum_T,int>,ret_t<Enum_T_inv,T>,E>{PU:Enum_T m_enum_T;Enum_T_inv m_enum_T_inv;IN EnumerationGraph(CRI SZ,Enum_T enum_T
    ,Enum_T_inv enum_T_inv,E edge);IN ret_t<Enum_T,int> Enumeration(CRI i);TE <TY F> IN EnumerationGraph<T,Enum_T,Enum_T_inv,F> GetGraph(F edge)CO;IN 
    ret_t<Enum_T_inv,T> Enumeration_inv_Body(CO T& t);};TE <TY Enum_T,TY Enum_T_inv,TY E> EnumerationGraph(CRI SZ,Enum_T enum_T,Enum_T_inv enum_T_inv
    ,E edge)-> EnumerationGraph<decldecay_t(declval<Enum_T>()(0)),Enum_T,Enum_T_inv,E>;TE <TY T,TY E>CL MemorisationGraph:PU EdgeImplimentation<T,T
    ,CRI,E>{PU:int m_LE;VE<T> m_memory;Map<T,int> m_memory_inv;IN MemorisationGraph(CRI SZ,CO T& dummy,E edge);IN T Enumeration(CRI i);IN VO Reset
    ();TE <TY F> IN MemorisationGraph<T,F> GetGraph(F edge)CO;IN CRI Enumeration_inv_Body(CO T& t);};
TE <TY T,TY R1,TY R2,TY E> IN EdgeImplimentation<T,R1,R2,E>::EdgeImplimentation(CRI SZ,E edge):m_SZ(SZ),m_edge(MO(edge)){ST_AS(is_COructible_v<T,R1> 
    && is_COructible_v<int,R2> && is_invocable_v<E,T>);}TE <TY E> IN Graph<E>::Graph(CRI SZ,E edge):EdgeImplimentation<int,CRI,CRI,E>(SZ,MO(edge
    )){}TE <TY T,TY Enum_T,TY Enum_T_inv,TY E> IN EnumerationGraph<T,Enum_T,Enum_T_inv,E>::EnumerationGraph(CRI SZ,Enum_T enum_T,Enum_T_inv 
    enum_T_inv,E edge):EdgeImplimentation<T,ret_t<Enum_T,int>,ret_t<Enum_T_inv,T>,E>(SZ,MO(edge)),m_enum_T(MO(enum_T)),m_enum_T_inv(MO(enum_T_inv
    )){}TE <TY T,TY E> IN MemorisationGraph<T,E>::MemorisationGraph(CRI SZ,CO T& dummy,E edge):EdgeImplimentation<T,T,CRI,E>(SZ,MO(edge)),m_LE
    (),m_memory(),m_memory_inv(){ST_AS(is_invocable_v<E,T>);}TE <TY E> IN CRI Graph<E>::Enumeration(CRI i){RE i;}TE <TY T,TY Enum_T,TY Enum_T_inv,TY 
    E> IN ret_t<Enum_T,int> EnumerationGraph<T,Enum_T,Enum_T_inv,E>::Enumeration(CRI i){RE m_enum_T(i);}TE <TY T,TY E> IN T MemorisationGraph<T,E
    >::Enumeration(CRI i){AS(0 <= i && i < m_LE);RE m_memory[i];}TE <TY T,TY R1,TY R2,TY E> IN R2 VirtualGraph<T,R1,R2,E>::Enumeration_inv(CO T& t
    ){RE Enumeration_inv_Body(t);}TE <TY T,TY R1,TY R2,TY E> TE <TY PATH> IN R2 VirtualGraph<T,R1,R2,E>::Enumeration_inv(CO PATH& p){RE 
    Enumeration_inv_Body(get<0>(p));}TE <TY E> IN CRI Graph<E>::Enumeration_inv_Body(CRI i){RE i;}TE <TY T,TY Enum_T,TY Enum_T_inv,TY E> IN ret_t
    <Enum_T_inv,T> EnumerationGraph<T,Enum_T,Enum_T_inv,E>::Enumeration_inv_Body(CO T& t){RE m_enum_T_inv(t);}TE <TY T,TY E> IN CRI MemorisationGraph
    <T,E>::Enumeration_inv_Body(CO T& t){if(m_memory_inv.count(t)== 0){AS(m_LE < TH->SZ());m_memory.push_back(t);RE m_memory_inv[t]= m_LE++;}RE 
    m_memory_inv[t];}TE <TY T,TY R1,TY R2,TY E> VO VirtualGraph<T,R1,R2,E>::Reset(){}TE <TY T,TY E> IN VO MemorisationGraph<T,E>::Reset(){m_LE = 0
    ;m_memory.clear();m_memory_inv.clear();}TE <TY T,TY R1,TY R2,TY E> IN CRI EdgeImplimentation<T,R1,R2,E>::SZ()CO NE{RE m_SZ;}TE <TY T,TY R1,TY R2
    ,TY E> IN E& EdgeImplimentation<T,R1,R2,E>::edge()NE{RE m_edge;}TE <TY T,TY R1,TY R2,TY E> IN ret_t<E,T> EdgeImplimentation<T,R1,R2,E>::Edge(CO 
    T& t){RE m_edge(t);}TE <TY T,TY R1,TY R2,TY E> TE <TY PATH> IN ret_t<E,T> VirtualGraph<T,R1,R2,E>::Edge(CO PATH& p){RE Edge(get<0>(p));}TE <TY E> 
    TE <TY F> IN Graph<F> Graph<E>::GetGraph(F edge)CO{RE Graph<F>(TH->SZ(),MO(edge));}TE <TY T,TY Enum_T,TY Enum_T_inv,TY E> TE <TY F> IN 
    EnumerationGraph<T,Enum_T,Enum_T_inv,F> EnumerationGraph<T,Enum_T,Enum_T_inv,E>::GetGraph(F edge)CO{RE EnumerationGraph<T,Enum_T,Enum_T_inv,F>(TH
    ->SZ(),m_enum_T,m_enum_T_inv,MO(edge));}TE <TY T,TY E> TE <TY F> IN MemorisationGraph<T,F> MemorisationGraph<T,E>::GetGraph(F edge)CO{RE 
    MemorisationGraph<T,F>(TH->SZ(),MO(edge));}TE <TY T,TY R1,TY R2,TY E> IN CO T& VirtualGraph<T,R1,R2,E>::Vertex(CO T& t)NE{RE t;}TE <TY T,TY R1,TY 
    R2,TY E> TE <TY PATH> IN CO T& VirtualGraph<T,R1,R2,E>::Vertex(CO PATH& e)NE{RE Vertex(get<0>(e));}
TE <TY INT = ll>CL CoordinateCompress{PU:set<INT> m_r;VE<INT*> m_l;IN CoordinateCompress();IN VO SetR(INT t);TE <TY U,TE <TY...> TY V > IN VO SetR(V
    <U> a);pair<VE<INT>,unordered_map<INT,int>> GetR();IN VO clearR();IN VO SetL(INT& t);TE <TY U,TE <TY...> TY V > IN VO SetL(V<U>& a);int GetL();IN 
    VO clearL();};
TE <TY INT> IN CoordinateCompress<INT>::CoordinateCompress():m_r(),m_l(){}TE <TY INT> IN VO CoordinateCompress<INT>::SetR(INT t){m_r.insert(MO(t
    ));}TE <TY INT> TE <TY U,TE <TY...> TY V > IN VO CoordinateCompress<INT>::SetR(V<U> a){for(auto& t:a){SetR(MO(t));}}TE <TY INT>pair<VE<INT
    >,unordered_map<INT,int>> CoordinateCompress<INT>::GetR(){pair<VE<INT>,unordered_map<INT,int>> AN{};AN.first.reSZ(m_r.SZ());int i = 0;for(auto t
    :m_r){AN.first[i]= t;AN.second[t]= i++;}RE AN;}TE <TY INT> IN VO CoordinateCompress<INT>::clearR(){m_r.clear();}TE <TY INT> IN VO 
    CoordinateCompress<INT>::SetL(INT& t){m_l.push_back(&t);}TE <TY INT> TE <TY U,TE <TY...> TY V > IN VO CoordinateCompress<INT>::SetL(V<U>& a){for
    (auto& t:a){SetL(t);}}TE <TY INT>int CoordinateCompress<INT>::GetL(){int i = -1;if(!m_l.empty()){auto comp =[](INT* CO& p0,INT* CO& p1){RE *p0 < 
    *p1;};sort(m_l.BE(),m_l.end(),comp);INT temp = *(m_l[0])- 1;for(auto p:m_l){*p = temp == *p?i:(temp = *p,++i);}}RE ++i;}TE <TY INT> IN VO 
    CoordinateCompress<INT>::clearL(){m_l.clear();}
TE <TY T,TY GRAPH>CL VirtualBreadthFirstSearch{PU:GRAPH& m_G;T m_not_found;bool m_initialised;LI<T> m_next;VE<bool> m_found;VE<T> m_prev;IN 
    VirtualBreadthFirstSearch(GRAPH& G,CO T& not_found);TE <TY Arg> IN VirtualBreadthFirstSearch(GRAPH& G,CO T& not_found,Arg&& init);IN VO 
    Initialise();IN VO Initialise(CO T& init);IN VO Initialise(LI<T> inits);IN VO Shift(CO T& init);IN VO Shift(LI<T> inits);IN CRI SZ()CO NE;IN VE
    <bool>::reference found(CO T& t);IN CO T& prev(CO T& t);IN T Next();TE <TY U = T> auto GetDistance()-> enable_if_t<is_same_v<GRAPH
    ,MemorisationGraph<U,decldecay_t(declval<GRAPH>().edge())>>,Map<T,int>>;TE <TY U = T> auto GetDistance()-> enable_if_t<!is_same_v<GRAPH
    ,MemorisationGraph<U,decldecay_t(declval<GRAPH>().edge())>>,VE<int>>;pair<VE<int>,int> GetConnectedComponent();VI VO Push(LI<T>& next,CO T& t)= 0
    ;TE <TY PATH> IN VO Push(LI<T>& next,CO PATH& p);};
TE <TY T,TY GRAPH> IN VirtualBreadthFirstSearch<T,GRAPH>::VirtualBreadthFirstSearch(GRAPH& G,CO T& not_found):m_G(G),m_not_found(not_found
    ),m_initialised(false),m_next(),m_found(),m_prev(){ST_AS(is_same_v<inner_t<GRAPH>,T>);}TE <TY T,TY GRAPH> TE <TY Arg> IN 
    VirtualBreadthFirstSearch<T,GRAPH>::VirtualBreadthFirstSearch(GRAPH& G,CO T& not_found,Arg&& init):VirtualBreadthFirstSearch<T,GRAPH>(G,not_found
    ){Initialise(forward<Arg>(init));}TE <TY T,TY GRAPH> IN VO VirtualBreadthFirstSearch<T,GRAPH>::Initialise(){m_initialised = true;CRI V = SZ
    ();m_next.clear();m_found = VE<bool>(V);m_prev = VE<T>(V,m_not_found);}TE <TY T,TY GRAPH> IN VO VirtualBreadthFirstSearch<T,GRAPH>::Initialise(CO 
    T& init){auto&& i = m_G.Enumeration_inv(init);AS(0 <= i && i < SZ());Initialise();m_next.push_back(init);m_found[i]= true;}TE <TY T,TY GRAPH> IN 
    VO VirtualBreadthFirstSearch<T,GRAPH>::Initialise(LI<T> inits){Initialise();m_next = MO(inits);CRI V = SZ();for(auto& u:m_next){auto&& i = m_G
    .Enumeration_inv(u);AS(0 <= i && i < V);m_found[i]= true;}}TE <TY T,TY GRAPH> IN VO VirtualBreadthFirstSearch<T,GRAPH>::Shift(CO T& init){if
    (m_initialised){CRI V = SZ();auto&& i = m_G.Enumeration_inv(init);AS(0 <= i && i < V);m_next.clear();if(! m_found[i]){m_next.push_back(init
    );m_found[i]= true;}}else{Initialise(init);}}TE <TY T,TY GRAPH> IN VO VirtualBreadthFirstSearch<T,GRAPH>::Shift(LI<T> inits){if(m_initialised
    ){m_next.clear();CRI V = SZ();for(auto& u:m_next){auto&& i = m_G.Enumeration_inv(u);AS(0 <= i && i < V);if(! m_found[i]){m_next.push_back(u
    );m_found[i]= true;}}}else{Initialise(MO(inits));}}TE <TY T,TY GRAPH> IN CRI VirtualBreadthFirstSearch<T,GRAPH>::SZ()CO NE{RE m_G.SZ();}TE <TY T
    ,TY GRAPH> IN VE<bool>::reference VirtualBreadthFirstSearch<T,GRAPH>::found(CO T& t){auto&& i = m_G.Enumeration_inv(t);AS(0 <= i && i < SZ());if
    (!m_initialised){Initialise();}RE m_found[i];}TE <TY T,TY GRAPH> IN CO T& VirtualBreadthFirstSearch<T,GRAPH>::prev(CO T& t){auto&& i = m_G
    .Enumeration_inv(t);AS(0 <= i && i < SZ());if(!m_initialised){Initialise();}RE m_prev[i];}TE <TY T,TY GRAPH> IN T VirtualBreadthFirstSearch<T
    ,GRAPH>::Next(){if(m_next.empty()){RE m_not_found;}CO T t_curr = m_next.front();m_next.pop_front();auto&& edge = m_G.Edge(t_curr);for(auto& t
    :edge){auto&& i = m_G.Enumeration_inv(t);auto&& found_i = m_found[i];if(! found_i){Push(m_next,t);m_prev[i]= t_curr;found_i = true;}}RE t_curr
    ;}TE <TY T,TY GRAPH> TE <TY U>auto VirtualBreadthFirstSearch<T,GRAPH>::GetDistance()-> enable_if_t<is_same_v<GRAPH,MemorisationGraph<U
    ,decldecay_t(declval<GRAPH>().edge())>>,Map<T,int>>{Map<T,int> AN{};for(auto IT = m_next.BE(),EN = m_next.EN();IT != EN;IT++){AN[*IT]= 0;}T t;WH
    ((t = Next())!= m_not_found){if(AN.count(t) == 0){AN[t]= AN[m_prev[m_G.Enumeration_inv(t)]]+ 1;}}RE AN;}TE <TY T,TY GRAPH> TE <TY U>auto 
    VirtualBreadthFirstSearch<T,GRAPH>::GetDistance()-> enable_if_t<!is_same_v<GRAPH,MemorisationGraph<U,decldecay_t(declval<GRAPH>().edge())>>,VE
    <int>>{VE AN(SZ(),-1);for(auto IT = m_next.BE(),EN = m_next.EN();IT != EN;IT++){AN[m_G.Enumeration_inv(*IT)]= 0;}T t;WH((t = Next())!= 
    m_not_found){auto&& i = m_G.Enumeration_inv(t);int& AN_i = AN[i];AN_i == -1?AN_i = AN[m_G.Enumeration_inv(m_prev[i])]+ 1:AN_i;}RE AN;}TE <TY T,TY 
    GRAPH>pair<VE<int>,int> VirtualBreadthFirstSearch<T,GRAPH>::GetConnectedComponent(){ST_AS(!is_same_v<GRAPH,MemorisationGraph<T,decldecay_t(m_G
    .edge())>>);CRI V = SZ();VE cc_num(V,-1);int count = 0;for(int i = 0;i < V;i++){if(cc_num[i]== -1){Shift(m_G.Enumeration(i));T t = Next();if(t != 
    m_not_found){WH(t != m_not_found){cc_num[m_G.Enumeration_inv(t)]= count;t = Next();}count++;}}}RE{MO(cc_num),MO(count)};}TE <TY T,TY GRAPH> TE 
    <TY PATH> IN VO VirtualBreadthFirstSearch<T,GRAPH>::Push(LI<T>& next,CO PATH& p){Push(next,get<0>(p));}
TE <TY T,TY GRAPH>CL BreadthFirstSearch:PU VirtualBreadthFirstSearch<T,GRAPH>{PU:TE <TY...Args> IN BreadthFirstSearch(GRAPH& G,CO T& not_found,Args&&
    ... args);IN VO Push(LI<T>& next,CO T& t);};
TE <TY T,TY GRAPH> TE <TY...Args> IN BreadthFirstSearch<T,GRAPH>::BreadthFirstSearch(GRAPH& G,CO T& not_found,Args&&... args
    ):VirtualBreadthFirstSearch<T,GRAPH>(G,not_found,forward<Args>(args)...){}TE <TY T,TY GRAPH> IN VO BreadthFirstSearch<T,GRAPH>::Push(LI<T>& next
    ,CO T& t){next.push_back(t);}
// (S,T,edge)が二部グラフである場合のみサポート。
// edgeのサイズをeと置く。最大二部マッチング問題を
// 時間計算量O((S+T+e)√(S+T))
// 空間計算量O(S+T+e)
// で解く。特に
// - eがO(ST)の時は時間計算量O(ST√(S+T))
// - eがO(S+T)の時は時間計算量O((S+T)√(S+T))
// で解く。
class HopcroftKarp
{
public:
  template <typename Edge> vector<pair<int,int>> GetMaximumMatching( const int& S , const int& T , Edge edge );
};
template <typename Edge> vector<pair<int,int>> HopcroftKarp::GetMaximumMatching( const int& S , const int& T , Edge edge )
{
  static_assert( is_invocable_r_v<vector<int>,Edge,const int&> );
  unordered_set<int> unchosen_source{};
  vector<int> prev( T , -1 );
  
  for( int s = 0 ; s < S ; s++ ){
    unchosen_source.insert( s );
  }
  // BFSのコンストラクタに渡す。
  // (1) w=0の時は、未選択なSの頂点vectorを返す。
  // (2) 0<w<=Sの時は、s=w-1からの有向辺の終端全体のvectorを返す。
  // (3) S<w<=S+Tの時は、t=w-S-1が未選択ならば空vectorを返し、
  //     選択済みならば対応する有向辺の始端sのみからなるvectorを返す。
  auto edge_shifted = [&]( const int& w ){
    vector<int> answer{};
  
    if( w == 0 ){
      for( auto& us : unchosen_source ){
    answer.push_back( 1 + us );
      }
    } else if( w <= S ){
      auto&& edge_w = edge( w - 1 );
      answer.reserve( edge_w.size() );
      for( auto& t : edge_w ){
    answer.push_back( 1 + S + t );
      }
    } else {
      const int t = w - 1 - S;
      assert( t < T );
      const int& s = prev[t];
      if( s != -1 ){
      
    assert( 0 <= s && s < S );
    answer.push_back( 1 + s );
      }
    }
    return answer;
  };
  Graph graph{ 1 + S + T , move( edge_shifted ) };
  BreadthFirstSearch bfs{ graph , -1 };
  vector<bool> chosen_source( S );
  vector<bool> chosen_target( T );
  vector<unordered_map<int,bool>> chosen_edge( S );
  vector<int> depth( 1 + S + T );
  int depth_min = -1;
  vector<int> root( S + T );
  vector<int> new_chosen_target{ 0 };
  int v , w;
  bool found;
  
  while( ! new_chosen_target.empty() ){
    new_chosen_target.clear();
    bfs.Initialise( 0 );
    v = bfs.Next();
    found = false;
    
    while( ( v = bfs.Next() ) != -1 ){
      w = bfs.prev( v );
      int& depth_v = depth[v] = depth[w] + 1;
      
      if( found && depth_v > depth_min ){
    break;
      
      }
      if( w == 0 ){
    const int s = v - 1;
    assert( 0 <= s && s < S );
    root[s] = s;
      } else {
    root[v - 1] = root[w - 1];
      }
      if( ( depth_v & 1 ) == 0 ){
    const int t = v - 1 - S;
    assert( 0 <= t && t < T );
    auto&& chosen_target_t = chosen_target[t];
      
    if( !chosen_target_t ){
      const int& s = root[v - 1];
      assert( 0 <= s && s < S );
      auto&& chosen_source_s = chosen_source[s];
      if( !chosen_source_s ){
        chosen_source_s = true;
        chosen_target_t = true;
        new_chosen_target.push_back( v );
        if( !found ){
          found = true;
          depth_min = depth_v;
        }
      }
    }
      }
    }
    for( auto& nct : new_chosen_target ){
      int* p[2] = { &w , &v };
      int*& p0 = p[0];
      int*& p1 = p[1];
      v = nct;
      while( ( w = bfs.prev( v ) ) != 0 ){
    const int s = *p0 - 1;
    const int t = *p1 - 1 - S;
    assert( 0 <= s && s < S && 0 <= t && t < T );
    
    if( chosen_edge[s][t] ^= true ){
      prev[t] = s;
    }
    
    swap( w , v );
    swap( p0 , p1 );
      }
      const int s = v - 1;
      assert( 0 <= s && s < S && unchosen_source.count( s ) == 1 );
      unchosen_source.erase( s );
    }
  }
  vector<pair<int,int>> answer{};
  for( int t = 0 ; t < T ; t++ ){
    const int& s = prev[t];
    
    if( s != -1 ){
      assert( 0 <= s && s < S && 0 <= t && t < T );
      answer.push_back( { s , t } );
    }
  }
  
  return answer;
}
// AAA ライブラリは以上に挿入する。
#define INCLUDE_MAIN
#include __FILE__
#else // INCLUDE_LIBRARY
#ifdef DEBUG
  #define _GLIBCXX_DEBUG
  #define DEXPR( LL , BOUND , VALUE1 , VALUE2 ) CEXPR( LL , BOUND , VALUE2 )
  #define SIGNAL signal( SIGABRT , &AlertAbort );
  #define ASSERT( A , MIN , MAX ) CERR( "ASSERTチェック： " , ( MIN ) , ( ( MIN ) <= A ? "<=" : ">" ) , A , ( A <= ( MAX ) ? "<=" : ">" ) , ( MAX ) 
      ); assert( ( MIN ) <= A && A <= ( MAX ) )
  #define CERR( ... ) VariadicCout( cerr , __VA_ARGS__ ) << endl
  #define COUT( ... ) VariadicCout( cout << "出力： " , __VA_ARGS__ ) << endl
  #define CERR_A( A , N ) OUTPUT_ARRAY( cerr , A , N ) << endl
  #define COUT_A( A , N ) cout << "出力： "; OUTPUT_ARRAY( cout , A , N ) << endl
  #define CERR_ITR( A ) OUTPUT_ITR( cerr , A ) << endl
  #define COUT_ITR( A ) cout << "出力： "; OUTPUT_ITR( cout , A ) << endl
#else
  #pragma GCC optimize ( "O3" )
  #pragma GCC optimize ( "unroll-loops" )
  #pragma GCC target ( "sse4.2,fma,avx2,popcnt,lzcnt,bmi2" )
  #define SIGNAL 
  #define DEXPR( LL , BOUND , VALUE1 , VALUE2 ) CEXPR( LL , BOUND , VALUE1 )
  #define ASSERT( A , MIN , MAX ) assert( ( MIN ) <= A && A <= ( MAX ) )
  #define CERR( ... ) 
  #define COUT( ... ) VariadicCout( cout , __VA_ARGS__ ) << ENDL
  #define CERR_A( N , A ) 
  #define COUT_A( N , A ) OUTPUT_ARRAY( cout , N , A ) << ENDL
  #define CERR_ITR( A ) 
  #define COUT_ITR( A ) OUTPUT_ITR( cout , A ) << ENDL
#endif
#ifdef REACTIVE
  #define ENDL endl
#else
  #define ENDL "\n"
#endif
#ifdef USE_GETLINE
  #define SET_LL( A ) { GETLINE( A ## _str ); A = stoll( A ## _str ); }
  #define GETLINE_SEPARATE( SEPARATOR , ... ) string __VA_ARGS__; VariadicGetline( cin , SEPARATOR , __VA_ARGS__ )
  #define GETLINE( ... ) GETLINE_SEPARATE( '\n' , __VA_ARGS__ )
#else
  #define SET_LL( A ) cin >> A
  #define CIN( LL , ... ) LL __VA_ARGS__; VariadicCin( cin , __VA_ARGS__ )
  #define SET_A( I , N , ... ) VariadicResize( N + I , __VA_ARGS__ ); FOR( VARIABLE_FOR_SET_A , 0 , N ){ VariadicSet( cin , VARIABLE_FOR_SET_A + I , 
      __VA_ARGS__ ); }
  #define CIN_A( LL , I , N , ... ) VE<LL> __VA_ARGS__; SET_A( I , N , __VA_ARGS__ );
#endif
#include <bits/stdc++.h>
using namespace std;
#define REPEAT_MAIN( BOUND ) int main(){ ios_base::sync_with_stdio( false ); cin.tie( nullptr ); SIGNAL; CEXPR( int , bound_test_case_num , BOUND ); 
    int test_case_num = 1; if constexpr( bound_test_case_num > 1 ){ CERR( "テストケースの個数を入力してください。" ); SET_ASSERT( test_case_num , 1 , 
    bound_test_case_num ); } REPEAT( test_case_num ){ if constexpr( bound_test_case_num > 1 ){ CERR( "testcase " , VARIABLE_FOR_REPEAT_test_case_num 
    , ":" ); } Solve(); CERR( "" ); } }
#define START_WATCH chrono::system_clock::time_point watch = chrono::system_clock::now()
#define CURRENT_TIME static_cast<double>( chrono::duration_cast<chrono::microseconds>( chrono::system_clock::now() - watch ).count() / 1000.0 )
#define CHECK_WATCH( TL_MS ) ( CURRENT_TIME < TL_MS - 100.0 )
#define CEXPR( LL , BOUND , VALUE ) constexpr LL BOUND = VALUE
#define SET_ASSERT( A , MIN , MAX ) SET_LL( A ); ASSERT( A , MIN , MAX )
#define SET_A_ASSERT( I , N , A , MIN , MAX ) FOR( VARIABLE_FOR_SET_A , 0 , N ){ SET_ASSERT( A[VARIABLE_FOR_SET_A + I] , MIN , MAX ); }
#define CIN_ASSERT( A , MIN , MAX ) decldecay_t( MAX ) A; SET_ASSERT( A , MIN , MAX )
#define CIN_A_ASSERT( I , N , A , MIN , MAX ) vector<decldecay_t( MAX )> A( N + I ); SET_A_ASSERT( I , N , A , MIN , MAX )
#define FOR( VAR , INITIAL , FINAL_PLUS_ONE ) for( decldecay_t( FINAL_PLUS_ONE ) VAR = INITIAL ; VAR < FINAL_PLUS_ONE ; VAR ++ )
#define FOREQ( VAR , INITIAL , FINAL ) for( decldecay_t( FINAL ) VAR = INITIAL ; VAR <= FINAL ; VAR ++ )
#define FOREQINV( VAR , INITIAL , FINAL ) for( decldecay_t( INITIAL ) VAR = INITIAL ; VAR + 1 > FINAL ; VAR -- )
#define ITR( ARRAY ) auto begin_ ## ARRAY = ARRAY .BE() , itr_ ## ARRAY = begin_ ## ARRAY , end_ ## ARRAY = ARRAY .EN()
#define FOR_ITR( ARRAY ) for( ITR( ARRAY ) , itr = itr_ ## ARRAY ; itr_ ## ARRAY != end_ ## ARRAY ; itr_ ## ARRAY ++ , itr++ )
#define RUN( VAR , ARRAY ) for( auto&& VAR : ARRAY )
#define REPEAT( HOW_MANY_TIMES ) FOR( VARIABLE_FOR_REPEAT_ ## HOW_MANY_TIMES , 0 , HOW_MANY_TIMES )
#define SET_PRECISION( DECIMAL_DIGITS ) cout << fixed << setprecision( DECIMAL_DIGITS )
#define RETURN( ... ) COUT( __VA_ARGS__ ); return
// 型のエイリアス
#define decldecay_t( VAR ) decay_t<decltype( VAR )>
template <typename F , typename...Args> using ret_t = decltype( declval<F>()( declval<Args>()... ) );
template <typename T> using inner_t = typename T::type;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using lld = __float128;
template <typename INT> using T2 = pair<INT,INT>;
template <typename INT> using T3 = tuple<INT,INT,INT>;
template <typename INT> using T4 = tuple<INT,INT,INT,INT>;
using path = pair<int,ll>;
// 入出力用
template <class Traits , typename T , typename U , template <typename...> typename V> inline auto operator>>( basic_istream<char,Traits>& is , V<T,U
    >& arg ) -> decltype((get<0>(arg),is))& { return is >> get<0>( arg ) >> get<1>( arg ); }
template <class Traits , typename T , typename U , typename V> inline basic_istream<char,Traits>& operator>>( basic_istream<char,Traits>& is , tuple
    <T,U,V>& arg ) { return is >> get<0>( arg ) >> get<1>( arg ) >> get<2>( arg ); }
template <class Traits , typename T , typename U , typename V , typename W> inline basic_istream<char,Traits>& operator>>( basic_istream<char,Traits
    >& is , tuple<T,U,V,W>& arg ) { return is >> get<0>( arg ) >> get<1>( arg ) >> get<2>( arg ) >> get<3>( arg ); }
template <class Traits , typename T , typename U , template <typename...> typename V> inline auto operator<<( basic_ostream<char,Traits>& os , const 
    V<T,U>& arg ) -> decltype((get<0>(arg),os))& { return os << get<0>( arg ) << " " << get<1>( arg ); }
template <class Traits , typename T , typename U , typename V> inline basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits>& os , const 
    tuple<T,U,V>& arg ) { return os << get<0>( arg ) << " " << get<1>( arg ) << " " << get<2>( arg ); }
template <class Traits , typename T , typename U , typename V , typename W> inline basic_ostream<char,Traits>& operator<<( basic_ostream<char,Traits
    >& os , const tuple<T,U,V,W>& arg ) { return os << get<0>( arg ) << " " << get<1>( arg ) << " " << get<2>( arg ) << " " << get<3>( arg ); }
#define DEFINITION_OF_COUT_FOR_VECTOR( V ) template <class Traits , typename Arg> inline basic_ostream<char,Traits>& operator<<( basic_ostream<char
    ,Traits>& os , const V<Arg>& arg ) { auto begin = arg.begin() , end = arg.end(); auto itr = begin; while( itr != end ){ ( itr == begin ? os : os 
    << " " ) << *itr; itr++; } return os; }
DEFINITION_OF_COUT_FOR_VECTOR( vector );
DEFINITION_OF_COUT_FOR_VECTOR( list );
DEFINITION_OF_COUT_FOR_VECTOR( set );
DEFINITION_OF_COUT_FOR_VECTOR( unordered_set );
inline void VariadicResize( const int& size ) {}
template <typename Arg , typename... ARGS> inline void VariadicResize( const int& size , Arg& arg , ARGS&... args ) { arg.resize( size ); 
    VariadicResize( size , args... ); }
template <class Traits> inline basic_istream<char,Traits>& VariadicCin( basic_istream<char,Traits>& is ) { return is; }
template <class Traits , typename Arg , typename... ARGS> inline basic_istream<char,Traits>& VariadicCin( basic_istream<char,Traits>& is , Arg& arg , 
    ARGS&... args ) { return VariadicCin( is >> arg , args... ); }
template <class Traits> inline basic_istream<char,Traits>& VariadicSet( basic_istream<char,Traits>& is , const int& i ) { return is; }
template <class Traits , typename Arg , typename... ARGS> inline basic_istream<char,Traits>& VariadicSet( basic_istream<char,Traits>& is , const int& 
    i , Arg& arg , ARGS&... args ) { return VariadicSet( is >> arg[i] , i , args... ); }
template <class Traits> inline basic_istream<char,Traits>& VariadicGetline( basic_istream<char,Traits>& is , const char& separator ) { return is; }
template <class Traits , typename Arg , typename... ARGS> inline basic_istream<char,Traits>& VariadicGetline( basic_istream<char,Traits>& is , const 
    char& separator , Arg& arg , ARGS&... args ) { return VariadicGetline( getline( is , arg , separator ) , separator , args... ); }
template <class Traits , typename Arg> inline basic_ostream<char,Traits>& VariadicCout( basic_ostream<char,Traits>& os , const Arg& arg ) { return os 
    << arg; }
template <class Traits , typename Arg1 , typename Arg2 , typename... ARGS> inline basic_ostream<char,Traits>& VariadicCout( basic_ostream<char,Traits
    >& os , const Arg1& arg1 , const Arg2& arg2 , const ARGS&... args ) { return VariadicCout( os << arg1 << " " , arg2 , args... ); }
// デバッグ用
#ifdef DEBUG
  inline void AlertAbort( int n ) { CERR( 
      "abort関数が呼ばれました。assertマクロのメッセージが出力されていない場合はオーバーフローの有無を確認をしてください。" ); }
#endif
#define INCLUDE_LIBRARY
#include __FILE__
#endif // INCLUDE_LIBRARY
#endif // INCLUDE_MAIN
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