input: def sumOfRanges(start: int, end: int) -> int:
      """ Compute the sum of square numbers in a given range, including the start and end numbers.
      >>> sumOfRanges(10, 20)
      673
      """
      sum = 0
      
      for i in range(start, end + 1):
          sum += i * i
      
      return sum
output:     sum = 0
      
      for i in range(start, end + 1):
          sum += i * i
      
      return sum