题解 | #数字颠倒#

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) {
        Scanner scanner=new Scanner(System.in);
        while (scanner.hasNext()) {
            int value = scanner.nextInt();
            StringBuffer sb=new StringBuffer();
            sb.append(value);
            sb.reverse();
            System.out.println(sb);
        }
    }
}