import java.util.*;
public class Main
{
public static void main(String args[])
{
long s=0,a,k;
Scanner sc=new Scanner(System.in);
long n=sc.nextLong();
if(n>=1&&n<=Math.pow(10,18))
{
while(n>0)
{
a=n%10;
if((9-a)<a)
s=s*10+(9-a);
else
s=s*10+a;
n=n/10;
}
k=num(s);
System.out.print(k);
}
}
public static long num(long s1)
{
long rev=0,b;
while(s1>0)
{
b=s1%10;
rev=rev*10+b;
s1=s1/10;
}
return rev;
}
}