#include <bits/stdc++.h>
using namespace std;
void sort(int arr[], int x) {
  for (int i = 0; i < x; i++)
    for (int j = i; j < x; j++) {
      if (arr[j] < arr[j + 1]) {
        int temp = arr[j];
        arr[j] = arr[j + 1];
        arr[j + 1] = temp;
      }
    }
}
int main() {
  string s;
  cin >> s;
  for (int i = 0; i < s.size(); i++) {
    if (i == 0 && s[i] == '9') continue;
    if (s[i] - '0' >= 5) s[i] = ('9' - s[i] + '0');
  }
  cout << s;
}
