KAY

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class ReveserOrder {
 public void order() throws IOException {
  InputStreamReader is = new InputStreamReader(System.in);
  BufferedReader br = new BufferedReader(is);
  String str = br.readLine();
  char c[] = str.toCharArray();
  int i = str.length();
  i--;
  char temp;
  for (int j = 0; j < i; j++, i--) {
   temp = c[j];
   c[j] = c[i];
   c[i] = temp;
  }
  System.out.println(new String(c, 0, str.length()));
 }

 public static void main(String[] args) throws IOException {
  new StringTest().order();
 }

}