#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n, a[20];
  cin >> n;
  int i = 0;
  while (n != 0) {
    int x = n % 10;
    if (x > 4) x = 9 - x;
    a[i] = x;
    n = n / 10;
    i++;
  }
  if (a[i - 1] == 0) a[i - 1] = 9;
  for (int j = i - 1; j >= 0; j--) {
    cout << a[j];
  }
  cout << endl;
  return 0;
}
