Write a method that returns the sum of all the integers in 'nums', except exclude all values between 'lower' and 'upper', inclusive. For example, if 'lower'=15 and 'upper'=30, you would exclude all the integers from 15 to 30 inclusive from the sum. So 15, 16, 17, ... 29, 30 would all be excluded from the sum. Return the sum of all the number that were not excluded. Notes: The array can be any length, including zero. There might not be any numbers in the excluded range. In that case you include all the numbers in the sum.