题解 | #字符串反转#

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String nextLine = sc.nextLine();
        StringBuffer stringBuffer = new StringBuffer();
        stringBuffer.append(nextLine).reverse();//关键在于反转
        System.out.println(""+stringBuffer);
    }
}