#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector< int > vi;
typedef vector< vi > vvi;
typedef vector< ll > vl;
typedef vector< vl > vvl;
typedef pair< int, int > pii;
typedef vector< pii > vp;
typedef vector< double > vd;
typedef vector< vd > vvd;
typedef vector< string > vs;

template< class T1, class T2 >
int upmin( T1 &x, T2 v ){
  if( x > v ){
    x = v;
    return 1;
  }
  return 0;
}

template< class T1, class T2 >
int upmax( T1 &x, T2 v ){
  if( x < v ){
    x = v;
    return 1;
  }
  return 0;
}

const int INF = 0x3f3f3f3f;

int N, M, Q;
vp bridge;
vp destroy;

void init(){
  cin >> N >> M >> Q;
  bridge = vp( M );
  for( int i = 0; i < M; ++i )
    cin >> bridge[ i ].first >> bridge[ i ].second,
    --bridge[ i ].first, --bridge[ i ].second;
  destroy = vp( Q );
  for( int i = 0; i < Q; ++i )
    cin >> destroy[ i ].first >> destroy[ i ].second,
    --destroy[ i ].first, --destroy[ i ].second;
}

set< pii > destroyed;

struct dsu{
  vi fa;
  vvi member;
  dsu( int sz ){
    fa = vi( sz );
    member = vvi( sz );
    for( int i = 0; i < sz; ++i )
      fa[ i ] = i,
      member[ i ].emplace_back( i );
  }
  int find( int x ){
    return fa[ x ] == x ? x : fa[ x ] = find( fa[ x ] );
  }
  int unite( int x, int y ){
    int a = find( x );
    int b = find( y );
    if( a == b )
      return 0;
    if( not ( member[ a ].size() >= member[ b ].size() ) )
      swap( a, b );
    for( int x : member[ b ] )
      member[ a ].emplace_back( x );
    member[ b ].clear(), member[ b ].shrink_to_fit();
    fa[ b ] = a;
    return 1;
  }
  int unite( int x, int y, vi &ans, int id ){
    int a = find( x );
    int b = find( y );
    if( a == b )
      return 0;
    if( not ( member[ a ].size() >= member[ b ].size() ) )
      swap( a, b );
    if( b == find( 0 ) )
      swap( a, b );
    for( int x : member[ b ] ){
      member[ a ].emplace_back( x );
      if( a == find( 0 ) )
        ans[ x ] = id;
    }
    member[ b ].clear(), member[ b ].shrink_to_fit();
    fa[ b ] = a;
    return 1;
  }
  int connected( int x, int y ){
    int a = find( x );
    int b = find( y );
    return a == b;
  }
} *uf;

vi ans;

void preprocess(){
  for( int i = 0; i < Q; ++i )
    destroyed.emplace( destroy[ i ] );
  uf = new dsu( N );
  for( int i = 0; i < M; ++i )
    if( not destroyed.count( bridge[ i ] ) )
      uf->unite( bridge[ i ].first, bridge[ i ].second ),
      uf->unite( bridge[ i ].second, bridge[ i ].first );
  ans = vi( N );
  for( int i = 0; i < N; ++i )
    if( uf->find( i ) == uf->find( 0 ) )
      ans[ i ] = -1;
  for( int i = Q - 1; i >= 0; --i )
    uf->unite( destroy[ i ].first, destroy[ i ].second, ans, i + 1 );
}

void solve(){
  for( int i = 1; i < N; ++i )
    cout << ans[ i ] << endl;
}

signed main(){
  ios::sync_with_stdio( 0 );
  init();
  preprocess();
  solve();
  return 0;
}