#include <bits/stdc++.h>
using namespace std;
char x[50];
int main() {
  scanf("%s", x);
  int len = strlen(x);
  bool isZ = true;
  if (x[0] != '9') {
    int a = x[0] - '0';
    int b = 9 - (x[0] - '0');
    x[0] = min(a, b) + '0';
  }
  for (int i = 1; i < len; ++i) {
    int a = x[i] - '0';
    int b = 9 - (x[i] - '0');
    x[i] = min(a, b) + '0';
  }
  cout << x;
  return 0;
}
