题解 | #字符逆序#

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		
		while(sc.hasNext()){
			StringBuffer sb = new StringBuffer(sc.nextLine());
			System.out.println(sb.reverse());
		}
		sc.close();
	}
}