@Override
	public int evaluate(Stock stock) {
		int value = 0;
		int step = 10;
		if(stock.movingUp(step)){
			while (step < 200) {
				if(stock.movingUp(step)){
					++value;
				}
				step *= 2;
			}
		}
		else if(stock.movingDown(step)){
			while (step < 200) {
				if(stock.movingDown(step)){
					++value;
				}
				step *= 2;
			}
		}
		return value;
	}