import java.util.*;

public class Main {
	static Scanner sc = new Scanner(System.in);
	static String line;
	public static void main(String[] args) {
		read();
		slove();
	}
	static  boolean read(){
		line = sc.nextLine();
		return true;
	}
	static void slove(){
		String line_ = new StringBuffer(line).reverse().toString();
		System.out.println(line_);
	}
}
/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