package com.newcoder.huawei;
import java.util.*;
/**
* 数字颠倒
*/
public class HJ11 {
public static void main(String[] args){
Scanner in = new Scanner(System.in);
while (in.hasNext()) {
String inputLine = in.nextLine();
char[] charArray = inputLine.toCharArray();
StringBuffer stringBuffer = new StringBuffer();
for (int i = charArray.length-1; i >= 0; i--) {
stringBuffer.append(charArray[i]);
}
System.out.println(stringBuffer.toString());
}
}
}