#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  long long n, s;
  cin >> n;
  s = n;
  vector<int> digits;
  while (n > 0) {
    digits.push_back(n % 10);
    n /= 10;
  }
  int start = digits.size() - 1;
  if (digits[start] == 0 || digits[start] == 9) start--;
  for (int i = 0; i <= start; i++)
    if (digits[i] > 9 - digits[i]) digits[i] = 9 - digits[i];
  for (int i = digits.size() - 1; i >= 0; i--) cout << digits[i];
  return 0;
}
