import java.util.*;
public class Main {

	public void doIt(){
		Scanner sc = new Scanner(System.in);
		while(sc.hasNext()){
			System.out.println(new StringBuilder(sc.next()).reverse().toString());
		}
	}
	public static void main(String[] args) {
		Main obj = new Main();
		obj.doIt();
	}
}
/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