#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;
  int i;
  vector<int> v;
  if (s[0] != '9') {
    if (s[0] >= '5') {
      v.push_back(9 - (s[0] - '0'));
    } else {
      v.push_back(s[0] - '0');
    }
  } else {
    v.push_back(9);
  }
  for (i = 1; s[i] != '\0'; i++) {
    if (s[i] >= '5') {
      v.push_back(9 - (s[i] - '0'));
    } else {
      v.push_back(s[i] - '0');
    }
  }
  for (i = 0; i < v.size(); i++) {
    cout << v[i];
  }
}
