#include<iostream>
using namespace std;
int main() {
long long int n;
cin >> n;
long long int arr[18],i=0,j;
while (n != 0) {
arr[i] = n % 10;
n = n / 10;
i++;
}
for (j = 0;j < i;j++) {
if (arr[j] >= 5) {
arr[j] = 9-arr[j];
}
}
long long int k=1;
for (j = 0;j < i;j++) {
n = n+arr[j]*k;
if (j == i-1&&n/k==0) {
n = 9*k+n%k;
}
k = k * 10;
}
cout << n << endl;
return 0;
}