public static void main ( String [ ] args ) {
  try {
    System . setIn ( new FileInputStream ( "input.txt" ) ) ;
    System . setOut ( new PrintStream ( new FileOutputStream ( "output.txt" ) ) ) ;
  }
  catch ( Exception e ) {
    System . err . println ( "Error" ) ;
  }
  FastReader objScanner = new FastReader ( ) ;
  int n = objScanner . nextInt ( ) ;
  int i = n + 1 ;
  while ( true ) {
    if ( distinct ( i ) ) {
      System . out . println ( i ) ;
      break ;
    }
    i ++ ;
  }
}

public static void main ( String [ ] args ) { try { System . setIn ( new FileInputStream ( " input . txt " ) ) ; System . setOut ( new PrintStream ( new FileOutputStream ( " output . txt " ) ) ) ; } catch ( Exception e ) { System . err . println ( " Error " ) ; } FastReader objScanner = new FastReader ( ) ; int n = objScanner . nextInt ( ) ; int i = n + 1 ; while ( true ) { if ( distinct ( i ) ) { System . out . println ( i ) ; break ; } i ++ ; } }
(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 (try_statement body: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (string_literal)))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (string_literal))))))))) (catch_clause (catch_formal_parameter (catch_type (type_identifier)) name: (identifier)) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_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: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (while_statement condition: (parenthesized_expression (true)) body: (block (if_statement condition: (parenthesized_expression (method_invocation name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (break_statement))) (expression_statement (update_expression (identifier)))))))