字符串反转

import java.util.Scanner;
 
/**
 * Created by Administrator on 2015/12/21.
 * 写出一个程序，接受一个字符串，然后输出该字符串反转后的字符串。例如：
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNext()){
            StringBuffer sb = new StringBuffer();
            String str = scanner.next();
            System.out.println(sb.append(str).reverse().toString());
        }
    }
}