#include <bits/stdc++.h>
int main() {
  char str[1000];
  while (scanf("%s", str) != EOF) {
    int l, i;
    l = strlen(str);
    if (str[0] == '9' || str[0] < '5')
      printf("%c", str[0]);
    else
      printf("%c", '9' + '0' - str[0]);
    for (i = 1; i < l; i++) {
      if (str[i] <= '4')
        printf("%c", str[i]);
      else
        printf("%c", '9' + '0' - str[i]);
    }
    printf("\n");
  }
  return 0;
}
