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 in = new Scanner(System.in);
        int number = in.nextInt();
        String numberString = String.valueOf(number);
        for(int i=numberString.length()-1;i>=0;i--){
            char n = numberString.charAt(i);
            System.out.print(n);

            
        }
        
       
    }
}