#include <bits/stdc++.h>
using namespace std;
char str[18 + 2];
int main() {
  scanf(" %s", str);
  bool ok = 0;
  for (int i = 0; str[i] != '\0'; i++) {
    if (!i && str[i] == '9')
      printf("9");
    else if (str[i] - '0' >= 5)
      printf("%c", '9' - str[i] + '0');
    else
      printf("%c", str[i]);
  }
  printf("\n");
}
