#include <bits/stdc++.h>
int main() {
  char s[100];
  scanf("%s", &s);
  for (int i = 0; i < strlen(s); i++) {
    if (s[i] != '0' && s[i] != '1' && s[i] != '2' && s[i] != '3' &&
        s[i] != '4') {
      if (s[i] == '5') printf("4");
      if (s[i] == '6') printf("3");
      if (s[i] == '7') printf("2");
      if (s[i] == '8') printf("1");
      if (s[i] == '9' && i > 0) printf("0");
      if (s[i] == '9' && i == 0) printf("9");
    } else {
      printf("%c", s[i]);
    }
  }
  return 0;
}
