import java.util.Scanner;
import java.util.Locale;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Main {
  public static void main(String[] args ){

    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int hundComplement = (10 - n / 100) * 100;
    int tenComplement =( 10 - n % 100 / 10) * 10;
    int oneComplement = 10 - n % 10;
    int result = hundComplement + tenComplement + oneComplement;

    System.out.println(result);
  }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz