
import java.util.*;
import java.lang.*;
import java.math.*;

public class Main {
	
	Scanner sc = new Scanner(System.in);
	
	void run() {
		
		String s = sc.next();
		
		StringBuffer strBuf = new StringBuffer(s);
		
		strBuf = strBuf.reverse();
		
		s = strBuf.toString();
		
		System.out.println(s);
		
		
		
	}
	
	public static void main(String[] args) {
		
		new Main().run();
		
	}
}
/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