import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		  try(Scanner sc = new Scanner(System.in)) {
			  StringBuffer str=new StringBuffer(sc.nextLine());
			  StringBuffer ans=str.reverse();
			  System.out.println(ans);
		  }
	}
}


/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