#include <bits/stdc++.h>
using namespace std;
class ConvertNumber {
 public:
  string Number(string);
};
string ConvertNumber::Number(string ch) {
  char res[20];
  int j = 0, i;
  for (i = 0; i < ch.size(); i++) {
    if (ch[i] > '4') {
      int a;
      a = ch[i] - 48;
      a = 9 - a;
      ch[i] = a + 48;
      res[j++] = ch[i];
    } else {
      res[j++] = ch[i];
    }
  }
  if (res[0] == '0') {
    res[0] = '9';
  }
  res[j] = '\0';
  return res;
}
int main() {
  string ch;
  while (cin >> ch) {
    ConvertNumber cn;
    cout << cn.Number(ch) << endl;
  }
  return 0;
}
