题解 | #字符逆序#

import java.util.Scanner;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
         public static void main(String[] args) throws IOException {

        Scanner scanner = new Scanner(System.in);
        InputStreamReader inputStreamReader=new InputStreamReader(System.in);
        BufferedReader br=new BufferedReader(inputStreamReader);
        String line = br.readLine();
        StringBuilder stringBuilder = new StringBuilder(line);
        StringBuilder reverse = stringBuilder.reverse();
        System.out.println(reverse.toString());




    }
}