class Value
{
   private int i;

   Value(int i)
   {
      super();
      this.i = i;
   }

   int getI()
   {
      return this.i;
   }

   void setI(int i)
   {
      this.i = i;
   }
}

class Reader extends Thread
{
   private Value v;

   Reader(Value v)
   {
      super();
      this.v = v;
   }

   public void run()
   {
      this.v.getI();
   }
}

class Writer extends Thread
{
   private Value v;

   Writer(Value v)
   {
      super();
      this.v = v;
   }

   public void run()
   {
      this.v.setI(2);
   }
}

public class Race
{
   public static void main (String[] args)
   {
      Value v = new Value(1);
      (new Writer(v)).start();
      (new Reader(v)).start();
   }
}