import java.util.Scanner;

public class Main{
    Main(){
	Scanner sc= new Scanner(System.in);

	while(sc.hasNext()){
	    String str = sc.next();
	    char[] ch = str.toCharArray();

	    for(int i = str.length()-1; i >= 0; i--)
		System.out.print(Character.toString(ch[i]));
	    System.out.println();
	}
    }

    public static void main(String[] args){
	new Main();
    }
}
/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