题解 | #字符逆序#

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner s=new Scanner(System.in);
        String str=s.nextLine();
        char[] c=str.toCharArray();
        for(int i=c.length-1;i>=0;i--){
            System.out.print(c[i]);
        }
    }
}