#include <bits/stdc++.h>
long long i, j, k, t, flag, min, max, len, ans;
int main() {
  long long n;
  char a[20];
  scanf("%s", &a);
  if (a[0] != '9' && a[i] > '4')
    printf("%d", '9' - a[0]);
  else
    printf("%d", a[0] - '0');
  for (i = 1; a[i] != '\0'; i++) {
    if (a[i] >= '5')
      printf("%d", '9' - a[i]);
    else
      printf("%d", a[i] - '0');
  }
  return 0;
}
