import java.util.*;
 
class MySet
{
   public static void main(String[] args) {
      HashSet number = new HashSet();
      fillSet(Set number);
   }
 
   public static void fillSet() {
      
      MyInteger myInt;
      for(int a=0; a < 10; a++) { 
         Integer num = new Integer((int) (11 +Math.random()*5));
         myInt = new MyInteger(num);
         System.out.print(num + " ");
         number.add(myInt); 
      }
 
      System.out.println();
 
      Iterator myI = number.iterator();
      while(myI.hasNext()) {
         System.out.print(myI.next() + " ");
      }
   }
}
 
class MyInteger {
   Integer i;
 
   public String toString() {
      return String.valueOf(i);
   }
 
   public MyInteger(Integer ni) {
      i = ni;
   }
}