package de.codegym.task.task19.task1926;
import java.io.*;
import java.util.*;
/*
Spiegelbild
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
FileReader file = new FileReader(br.readLine());
BufferedReader reader = new BufferedReader(file);
String input = reader.readLine();
String reverse = new String();
for(int i = input.length()-1; i >= 0; i--){
reverse += input.charAt(i);
}
System.out.println(reverse);
br.close();
file.close();
reader.close();
}
}