private static double round2(double num) {
		if (num>=1000000){
			double result = (double)num / 10000;
			result = Math.round(result);
			result = result / 100;
			return result;
		}
		else if (num>=1000){
			double result = (double)num / 10;
			result = Math.round(result);
			result = result / 100;
			return result;
		}
		else{
			double result = (double)num;
			return result;
		}
	}