#include <bits/stdc++.h>
using ll = long long;
void solve() {
  std::string x;
  std::cin >> x;
  if (x[0] >= '5' && x[0] < '9') x[0] = '9' - x[0] + '0';
  for (int i = 1; i < x.size(); i++) {
    if (x[i] >= '5') x[i] = '9' - x[i] + '0';
  }
  std::cout << x << '\n';
}
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv) {
  std::ios_base::sync_with_stdio(false);
  std::cin.tie(nullptr);
  int t;
  t = 1;
  while (t--) solve();
  return 0;
}
