public static void main ( String [ ] args ) {
  HashMap < String , Integer > map = new HashMap < > ( ) ;
  int n = sc . nextInt ( ) ;
  String s ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    s = sc . next ( ) ;
    map . put ( s , map . getOrDefault ( s , 0 ) ) ;
    map . put ( s , map . get ( s ) + 1 ) ;
  }
  int m = sc . nextInt ( ) ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) {
    s = sc . next ( ) ;
    map . put ( s , map . getOrDefault ( s , 0 ) ) ;
    map . put ( s , map . get ( s ) - 1 ) ;
  }
  int max = 0 ;
  for ( Map . Entry < String , Integer > e : map . entrySet ( ) ) {
    max = Math . max ( max , e . getValue ( ) ) ;
  }
  out . println ( max ) ;
}

public static void main ( String [ ] args ) { HashMap < String , Integer > map = new HashMap < > ( ) ; int n = sc . nextInt ( ) ; String s ; for ( int i = 0 ; i < n ; i ++ ) { s = sc . next ( ) ; map . put ( s , map . getOrDefault ( s , 0 ) ) ; map . put ( s , map . get ( s ) + 1 ) ; } int m = sc . nextInt ( ) ; for ( int i = 0 ; i < m ; i ++ ) { s = sc . next ( ) ; map . put ( s , map . getOrDefault ( s , 0 ) ) ; map . put ( s , map . get ( s ) - 1 ) ; } int max = 0 ; for ( Map . Entry < String , Integer > e : map . entrySet ( ) ) { max = Math . max ( max , e . getValue ( ) ) ; } out . println ( max ) ; }
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