// modulo 11 check digit calculation
// Copyright (C)2003 Jean-Marc Rosengard - http://w2.syronex.com/jmr/

public class Mod11Ck {
  public static String calc(String digStr) {
    int len = digStr.length();
    int sum = 0, rem = 0;
    int[] digArr = new int[len];
    for (int k=1; k<=len; k++) // compute weighted sum
      sum += (11 - k) * Character.getNumericValue(digStr.charAt(k - 1));
    if ((rem = sum % 11) == 0) return "0";
    else if (rem == 1) return "X";
    else return (new Integer(11 - rem)).toString();
  }
  public static void main(String[] args) {
      System.out.println(args[0]+"-"+calc(args[0]));  
  }
}