import java.io.File;
import java.util.HashSet;
import java.util.Scanner;


public class Main {

		  public static void main(String[] args) throws Exception{
			  
		  try {
		        Scanner input = new Scanner(System.in);

		        while (input.hasNext()) {
		         String reverse;
		         String string = input.nextLine();
		         reverse = new StringBuilder(string).reverse().toString();
		         System.out.println(reverse);
		        }    
		         	        
		        input.close();

		        } catch (Exception ex) {
		            ex.printStackTrace();
		        }
		    }
		}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz