import java.util.Scanner;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class Main{
    public static void main(String[] args){
			Scanner sc = new Scanner(System.in);
      		String str = sc.nextLine();
      		for(int i=str.length()-1; i>=0; i--){
              System.out.print(str.charAt(i));
            }
              System.out.println();
    }
}


/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