import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int ans = 0;
    int conf = 0;
    for (int i = 0; i < 3; i++) {
      if ((n / (int)Math.pow(10, i)) % 10 == 1) {
        ans += 9 * Math.pow(10, i);
      } else {
        ans += 1 * Math.pow(10, i);
      }
    }
    System.out.println(ans);

  }

}

/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