input: Write a function to compute the sum of square numbers in a given range, including the start and end numbers. If the given range is empty then return 0.
  def sumOfRanges(start, end):
      if start > end:
          return 0
      sum = 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, 3) == 14
  assert sumOfRanges(2, 1) == 0
  assert sumOfRanges(-3, 3) == 14
output: def sumOfRanges(start, end):
      if start > end:
          return 0
      sum = 0
      for i in range(start, end + 1):
          sum += i * i
      return sum