public static void main ( String [ ] args ) throws IOException {
  BufferedReader r = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  String s = r . readLine ( ) ;
  char [ ] o = s . toCharArray ( ) ;
  int j = 0 ;
  for ( ;
  j < o . length - 1 ;
  j ++ ) if ( o [ j ] > n ( o [ j ] ) ) break ;
  for ( int i = j ;
  i < o . length ;
  i ++ ) if ( i != j && o [ i ] < n ( o [ i ] ) ) break ;
  else o [ i ] = n ( o [ i ] ) ;
  System . out . println ( new String ( o ) ) ;
}

public static void main ( String [ ] args ) throws IOException { BufferedReader r = new BufferedReader ( new InputStreamReader ( System . in ) ) ; String s = r . readLine ( ) ; char [ ] o = s . toCharArray ( ) ; int j = 0 ; for ( ; j < o . length - 1 ; j ++ ) if ( o [ j ] > n ( o [ j ] ) ) break ; for ( int i = j ; i < o . length ; i ++ ) if ( i != j && o [ i ] < n ( o [ i ] ) ) break ; else o [ i ] = n ( o [ i ] ) ; System . out . println ( new String ( o ) ) ; }
(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: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (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: (array_type element: (integral_type) dimensions: (dimensions)) 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: (decimal_integer_literal))) (for_statement condition: (binary_expression left: (identifier) right: (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)))))) consequence: (break_statement))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) condition: (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))))) consequence: (break_statement) alternative: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (identifier))))))))