import java.util.*;

public class Main{
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in); 
		while(sc.hasNext()){
		String a = sc.nextLine();
			StringBuffer sb = new StringBuffer(a);
			sb.reverse();
			System.out.println(sb);
			
		}
	}
	
}
/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