题解 | #HJ106 字符逆序#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            String s = in.nextLine();
            StringBuffer sb = new StringBuffer(s);
            System.out.println(sb.reverse());
        }
    }
}