input: Write a function to compute the sum of the square numbers in a given range, including the start and end numbers. If the input range is empty, return 0.
  def sumOfRanges(start, end):
      sum = 0
      
      if start > end:
          return 0
      
      for i in range(start, end + 1):
          sum += i * i
      
      return sum
  
  assert sumOfRanges(10, 20) == 673
  assert sumOfRanges(5, 5) == 25
  assert sumOfRanges(0, 0) == 0
  assert sumOfRanges(3, 2) == 0
  assert sumOfRanges(-2, 2) == 10
output: def sumOfRanges(start, end):
      sum = 0
      
      if start > end:
          return 0
      
      for i in range(start, end + 1):
          sum += i * i
      
      return sum