/* -*- coding: utf-8 -*-
 *
 * 3035.cc:  No.3035 譁・ｭ怜・縺ｮ縺ｿ縺ｮ蜿崎ｻ｢ - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* constant */

const int MAX_N = 100;

/* typedef */

/* global variables */

char s[MAX_N + 4];

/* subroutines */

/* main */

int main() {
  scanf("%s", s);

  int k = 0;
  while (s[k] && s[k] >= 'a' && s[k] <= 'z') k++;
  reverse(s, s + k);

  puts(s);
  
  return 0;
}