public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  PrintWriter out = new PrintWriter ( System . out ) ;
  int N = Integer . parseInt ( sc . next ( ) ) ;
  String s [ ] = new String [ N ] ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    s [ i ] = sc . next ( ) ;
  }
  int M = Integer . parseInt ( sc . next ( ) ) ;
  String t [ ] = new String [ M ] ;
  for ( int i = 0 ;
  i < M ;
  i ++ ) {
    t [ i ] = sc . next ( ) ;
  }
  int ans = 0 ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    int cnt = 0 ;
    for ( int j = 0 ;
    j < N ;
    j ++ ) {
      if ( s [ i ] . equals ( s [ j ] ) ) {
        cnt ++ ;
      }
    }
    for ( int j = 0 ;
    j < M ;
    j ++ ) {
      if ( s [ i ] . equals ( t [ j ] ) ) {
        cnt -- ;
      }
    }
    if ( cnt > 0 && cnt > ans ) {
      ans = cnt ;
    }
  }
  out . println ( ans ) ;
  out . flush ( ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; PrintWriter out = new PrintWriter ( System . out ) ; int N = Integer . parseInt ( sc . next ( ) ) ; String s [ ] = new String [ N ] ; for ( int i = 0 ; i < N ; i ++ ) { s [ i ] = sc . next ( ) ; } int M = Integer . parseInt ( sc . next ( ) ) ; String t [ ] = new String [ M ] ; for ( int i = 0 ; i < M ; i ++ ) { t [ i ] = sc . next ( ) ; } int ans = 0 ; for ( int i = 0 ; i < N ; i ++ ) { int cnt = 0 ; for ( int j = 0 ; j < N ; j ++ ) { if ( s [ i ] . equals ( s [ j ] ) ) { cnt ++ ; } } for ( int j = 0 ; j < M ; j ++ ) { if ( s [ i ] . equals ( t [ j ] ) ) { cnt -- ; } } if ( cnt > 0 && cnt > ans ) { ans = cnt ; } } out . println ( ans ) ; out . flush ( ) ; }
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(method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))