#include <bits/stdc++.h>
using namespace std;
bool compare(pair<int, int> a, pair<int, int> b) { return a.first < b.first; }
int main() {
  string str;
  cin >> str;
  int n = str.length();
  if (n >= 1) {
    if (str[0] != '9') {
      if (str[0] > '4') {
        str[0] = (char)((int)'0' + (int)'9' - (int)str[0]);
      }
    }
  }
  for (int i = 1; i < n; i++) {
    if (str[i] > '4') {
      str[i] = (char)((int)'0' + (int)'9' - (int)str[i]);
    }
  }
  cout << str;
  return 0;
}
