题解 | 单组_字符串

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int n = in.nextInt();
        in.nextLine();
        String str = in.nextLine();
        for (int i = n - 1; i >= 0; i--) {
            System.out.print(str.charAt(i));
        }
    }
}