#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<stdint.h>
#include<stdbool.h>
#include<tgmath.h>
#include<time.h>
#define ll long long
#define min(a,b) ((a)>(b)?(b):(a))
#define max(a,b) ((a)>(b)?(a):(b))
#define miin(a,b,c) min((a), min((b), (c)))
#define maax(a,b,c) max((a), max((b), (c)))
char s[22];
main(){
    scanf("%s", s);
    int l = strlen(s);
    for(int i=l-1; i>=0; i--){
        putchar(s[i] ^ 2);
    }
    puts("");
    return 0;
}