题解 | #数字颠倒#

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        for (int i = 0; i < s.length(); i++) {
            System.out.print(s.charAt(s.length() - 1 - i));
        }
    }
}