public void run() {
            while (true) {
                for (int i = 1; i <= 100000; i++) {
                    d += (Math.E+ Math.PI)/i;
                    if (i % 1000 == 0) Thread.yield();
                }
                if(countDown-- <=0 ) break;
                println(this.id +":" + this.countDown + ":" + this.getPriority());
            }
        }