public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  PrintWriter out = new PrintWriter ( System . out ) ;
  String s = sc . nextLine ( ) ;
  int n = sc . nextInt ( ) ;
  String res = null ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    String word = sc . next ( ) ;
    if ( word . startsWith ( s ) ) {
      if ( res == null || res . compareTo ( word ) > 0 ) {
        res = word ;
      }
    }
  }
  if ( res == null ) {
    res = s ;
  }
  System . out . println ( res ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; PrintWriter out = new PrintWriter ( System . out ) ; String s = sc . nextLine ( ) ; int n = sc . nextInt ( ) ; String res = null ; for ( int i = 0 ; i < n ; i ++ ) { String word = sc . next ( ) ; if ( word . startsWith ( s ) ) { if ( res == null || res . compareTo ( word ) > 0 ) { res = word ; } } } if ( res == null ) { res = s ; } System . out . println ( res ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (null_literal))) (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 (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (null_literal)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (null_literal))) 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 (identifier))))))