public static void main ( String [ ] args ) throws Exception {
  HashMap < String , Integer > map = new HashMap < > ( ) ;
  int n = Integer . parseInt ( in . readLine ( ) ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    String key = in . readLine ( ) ;
    if ( map . containsKey ( key ) ) {
      map . put ( key , map . get ( key ) + 1 ) ;
    }
    else {
      map . put ( key , 1 ) ;
    }
  }
  int m = Integer . parseInt ( in . readLine ( ) ) ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) {
    String key = in . readLine ( ) ;
    if ( map . containsKey ( key ) ) {
      map . put ( key , map . get ( key ) - 1 ) ;
    }
    else {
      map . put ( key , - 1 ) ;
    }
  }
  in . close ( ) ;
  int max = - 1 ;
  for ( int val : map . values ( ) ) {
    if ( max < val ) {
      max = val ;
    }
  };
  System . out . println ( max < 0 ? 0 : max ) ;
}

public static void main ( String [ ] args ) throws Exception { HashMap < String , Integer > map = new HashMap < > ( ) ; int n = Integer . parseInt ( in . readLine ( ) ) ; for ( int i = 0 ; i < n ; i ++ ) { String key = in . readLine ( ) ; if ( map . containsKey ( key ) ) { map . put ( key , map . get ( key ) + 1 ) ; } else { map . put ( key , 1 ) ; } } int m = Integer . parseInt ( in . readLine ( ) ) ; for ( int i = 0 ; i < m ; i ++ ) { String key = in . readLine ( ) ; if ( map . containsKey ( key ) ) { map . put ( key , map . get ( key ) - 1 ) ; } else { map . put ( key , - 1 ) ; } } in . close ( ) ; int max = - 1 ; for ( int val : map . values ( ) ) { if ( max < val ) { max = val ; } } ; System . out . println ( max < 0 ? 0 : max ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_identifier)) body: (block (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal)))))) alternative: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal)))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal)))))) alternative: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (unary_expression operand: (decimal_integer_literal))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (unary_expression operand: (decimal_integer_literal)))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (ternary_expression condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) consequence: (decimal_integer_literal) alternative: (identifier)))))))