import java.util.*;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		while (sc.hasNextLine()) {
			String reverse = sc.nextLine();
			char[] a = reverse.toCharArray();
			char[] b = new char[a.length];
			int j = 0;
			for (int i = a.length - 1; i >= 0; i--) {
				b[j] = a[i];
				j++;
			}
			System.out.println(b);
		}
	}
}
/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