code: def solve(start, end):
      """
      How many letters would be needed to write all the numbers in words from 1 to 1000?
      """
  
      words = [
          (1, "one", ""),
          (2, "two", ""),
          (3, "three", ""),
          (4, "four", ""),
          (5, "five", ""),
          (6, "six", ""),
          (7, "seven", ""),
          (8, "eight", ""),
          (9, "nine", ""),
          (10, "ten", ""),
          (11, "eleven", ""),
          (12, "twelve", ""),
          (13, "thirteen", ""),
          (14, "fourteen", ""),
          (15, "fifteen", ""),
          (16, "sixteen", ""),
          (17, "seventeen", ""),
          (18, "eighteen", ""),
          (19, "nineteen", ""),
          (20, "twenty", ""),
          (30, "thirty", ""),
          (40, "forty", ""),
          (50, "fifty", ""),
          (60, "sixty", ""),
          (70, "seventy", ""),
          (80, "eighty", ""),
          (90, "ninety", ""),
          (100, "hundred", "and"),
          (1000, "thousand", "and"),
      ]
      words.reverse()
  
      def spell(n, words):
          word = []
          while n > 0:
              for num in words:
                  if num[0] <= n:
                      div = n / num[0]
                      n = n % num[0]
                      if num[2]:
                          word.append(" ".join(spell(div, words)))
                      word.append(num[1])
                      if num[2] and n:
                          word.append(num[2])
                      break
          return word
  
      return sum(
          len(word)
          for n in range(start, end + 1)
          for word in spell(n, words)
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: solve(start, end) and returns: sum, word