import java.util.Scanner;
class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		
		while(scan.hasNext()){
			String str = scan.nextLine();
			int n = str.length();
			for(int i = n-1;i >= 0;i--){
				char t = str.charAt(i);
				System.out.print(t);
			}
			System.out.println();
		}
	}
}
/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