题解 | #[NOIP2008]ISBN号码#

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);
        String [] arr = in.nextLine().split("-");
        int num = 0;
        int i = 1;
        String [] arr1 = (arr[0]+arr[1]+ arr[2]).split("");
       
         for(int j = 0; j < arr1.length;j++){
           num += Integer.parseInt(arr1[j]) * i ;
            i++;
         }

        String f ="";
        if (num % 11 == 10){
            f = "X";
        }else{
            f += num % 11;
        }
         if (arr[3].equals(f) ) {
            System.out.println("Right");
         }else{
            System.out.println(arr[0] + "-" + arr[1] + "-" + arr[2] + "-" + f);
         }



    }
}