/* -*- coding: utf-8 -*-
 *
 * 2314.cc:  No.2314 Backflip - yukicoder
 */

#include<cstdio>
#include<cstring>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_N = 8;

/* typedef */

/* global variables */

char s[MAX_N + 4];

/* subroutines */

/* main */

int main() {
  scanf("%s", s);
  int n = strlen(s);

  s[n - 1] = '1' - (s[n - 1] - '0');
  puts(s);

  return 0;
}