import java.util.*;
public class Main {
	static Scanner sc = new Scanner(System.in);
	static String in;
	public static void main(String[] args) {
		while(read()){
			solve();
		}
	}
	
	static boolean read(){
		if(!sc.hasNext())return false;
		in = sc.next();
		return true;
	}
	
	static void solve(){
		StringBuffer sb = new StringBuffer(in);
		System.out.println(sb.reverse());
	}
}
/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