Нужна помощь с этим java-кодом, включающим поток управления для возврата строки значения числа

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static String Q3(int a, int b, int c, double lowerBound, double targetValue, double upperBound) {

        // TODO: If the average of a, b, and c is less than lower bound, return "too low".
        //       If the average of a, b, and c is greater than upper bound, return "too high".
        //       If the average of a, b, and c is within 2.5 of the target value, return "just right".
        //       If the average of a, b, and c is between the upper and lower bounds,
        //          but not within 2.5 of the target value, return "almost".
        //

Если я запущу это

System.out.println(Q3(74, 9, 48, 18.4, 38.4, 112.1));
		System.out.println(Q3(22, 8, 16, -9.0, 38.3, 124.5));
		System.out.println(Q3(31, 32, 35, 20.7, 35.1, 88.2));
		System.out.print(Q3(22, 8, 16, -9.0, 38.3, 124.5));

Я должен получить почти, в самый раз, в самый раз и почти . Я продолжаю получать

almost
null
null
null

Что я уже пробовал:

static String Q3(int a, int b, int c, double lowerBound, double targetValue, double upperBound) {

        // TODO: If the average of a, b, and c is less than lower bound, return "too low".
        //       If the average of a, b, and c is greater than upper bound, return "too high".
        //       If the average of a, b, and c is within 2.5 of the target value, return "just right".
        //       If the average of a, b, and c is between the upper and lower bounds,
        //          but not within 2.5 of the target value, return "almost".
        //

        // 22, 8, 16, -9.0, 38.3, 124.5
        // 31, 32, 35, 20.7, 35.1, 88.2 -- avg=36.667
    	// 74, 9, 48, 18.4, 38.4, 112.1 == 43.6666667
    	// 22, 8, 16, -9.0, 38.3, 124.5 == 15.23 35.8  40.8
    	 double avg = (a+b+c)/3;
    	 String result = null;
    	 if(avg < lowerBound){
    		 result = "too low";
    	 }
    	 else if(avg > upperBound){
    		 result = "too high";
    	 }
    	 else if(targetValue - 2.5 <= avg && avg <= targetValue + 2.5){
    		 result = "just right";
    	 }
    	 else if(lowerBound < avg && avg < upperBound && targetValue - 2.5 < avg && targetValue + 2.5 < avg){
    		 result = "almost";
    	 }
    	 else{
    		 return result;
    	 }
		return result;
    	 
    }

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