#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;
  int k, i;
  k = s.length();
  for (i = 0; i < k; i++) {
    if (s[i] == '5') {
      s[i] = '4';
    } else if (s[i] == '6') {
      s[i] = '3';
    } else if (s[i] == '7') {
      s[i] = '2';
    } else if (s[i] == '8') {
      s[i] = '1';
    } else if (s[i] == '9' && i != 0) {
      s[i] = '0';
    }
  }
  cout << s;
}
